Instructions: In this task, you are given a text of many news articles seperated by special token "|||||". Your task is to summarize them.
Input: What's a president to do when his reelection campaign suddenly seems like it's in peril? Stop by a Katy Perry concert, naturally. 
  
 Perry -- along with Bon Jovi, Stevie Wonder and Earth, Wind & Fire -- performed at a rally for Barack Obama's campaign on Sunday night in Los Angeles. The event, which was attended by the president, George Clooney and about 6,000 supporters, was part of previously planned push called "30 Days to Victory." 
  
 Obama also appeared at events at the home of DreamWorks Animations CEO Jeffrey Katzenberger and Wolfgang Puck's WP24 restaurant. The busy day was filled with the president's jokes about his own performance in the first presidential debate of the campaign. After noting his fascination with the fact that the singers at the concert performed flawlessly every night, Obama deadpanned, "I can't always say the same." 
  
 As evidenced by videos posted online "Firework" (above) and "Let's Stay Together" were on Perry's setlist. Tickets for the event ranged from $44 (for attendees under the age of 40) to $250. Obama has enjoyed a great deal of success with the music industry, having recently stopped by a fundraiser hosted by Jay-Z and Beyonce at the rapper's 40/40 Club. That event brought in $4 million for the campaign. 
  
 A slew of performers, from Tom Morello of Rage Against the Machine to the Silversun Pickups and Dee Snider, have publicly denounced the Romney-Ryan. 
  
 But not all musically inclined celebrities fall on the left of the political spectrum: Kid Rock is an avowed Romney fan who has performed for the GOP nominee, and Ted Nugent and Hank WIlliams Jr. have made a number of fiery statements about the president. 
  
 Perry was apparently quite excited to be a part of the event, if this photo that she posted of her nails is any indication: 
  
 More on celebrities and politicians: 
  
 Loading Slideshow George Clooney & President Obama Actor George Clooney leaves after he spoke to the media March 15, 2012 at the White House in Washington, DC. Clooney had meeting with President Barack Obama to discuss the current situations in Darfur, Sudan. (Photo by Alex Wong/Getty Images) 
  
 President Obama & Tyler Perry Actor and director Tyler Perry hugs US President Barack Obama during a campaign event at Tyler Perry Studios March 16, 2012 in Atlanta, Georgia. President Obama is spending the day traveling to Chicago, Illinois and Atlanta, Georgia to attend private and public campaign events. (Photo by BRENDAN SMIALOWSKI/AFP/Getty Images) 
  
 The Obamas & Oprah Winfrey US President Barack Obama and First Lady Michelle Obama chat with talk show host Oprah Winfrey during a taping of the Oprah Winfrey show April 27, 2011 at Harpo Studios in Chicago. (Photo by MANDEL NGAN/AFP/Getty Images) 
  
 President Obama & Magic Johnson In this handout image provided by the U.S. Navy, President Barack Obama is greeted on the court by NBA Hall of Fame basketball player Earvin 'Magic' Johnson and Michigan State University assistant coach Mike Garland. (Photo by Mass Communication Specialist 2nd Class James R. Evans/U.S. Navy via Getty Images) 
  
 Willow Smith Performs At The White House Willow Smith, daughter of Will Smith and Jada Pinkett Smitt, performs during the White House Easter Egg Roll on the South Lawn of the White House on April 25, 2011 in Washington, DC. (Photo by Roger L. Wollenberg-Pool/Getty Images) 
  
 Antonio Banderas & President Obama Antonio Banderas and his wife Melanie Griffith hosted a fundraising event for President Obama in October 2011. (Photo by Sean Gallup/Getty Images) 
  
 Tom Hanks Narrates Pro-Obama Film This 17-minute film released by President Obama's re-election campaign was directed by Davis Guggenheim (director of "An Inconvenient Truth") and narrated by actor Tom Hanks. 
  
 Gov. Mitt Romney & Jeff Foxworthy Republican presidential candidate, former Massachusetts Gov. Mitt Romney makes a campaign appearance with comedian Jeff Foxworthy at the Whistle Stop cafe March 12, 2012 in Mobile, Alabama. (Photo by Win McNamee/Getty Images) 
  
 Gov. Mitt Romney & Kid Rock Republican presidential candidate and former Massachusetts Gov. Mitt Romney greets musician Kid Rock during a campaign rally at the Royal Oak Theatre on February 27, 2012 in Royal Oak, Michigan. (Photo by Justin Sullivan/Getty Images) 
  
 David Mustaine & Rick Santorum David Mustaine of Megadeth expressed support for Rick Santorum in a February <a href="http://www.musicradar.com/news/live/interview-megadeths-dave-mustaine-talks-guitar-politics-and-todays-music-529703" target="_hplink">interview with Music Radar</a>. 
  
 Kelly Clarkson & Ron Paul Kelly Clarkson tweeted about her love for Ron Paul in late 2011, but dialed it back slightly after a backlash accused her of supporting Paul's racist and homophobic publications, <a href="http://www.foxnews.com/entertainment/2012/03/09/kelly-clarkson-never-endorsed-ron-paul/" target="_hplink">reports Fox News</a>. (Photo by ROBYN BECK/AFP/Getty Images) 
  
 Snoop Dogg & Ron Paul In December 2011, Snoop Dogg posted a picture of Ron Paul on his Facebook page with the caption "Smoke Weed Every Day," <a href="http://www.reuters.com/article/2012/01/31/us-snoopdogg-ronpaul-idUSTRE80U04220120131" target="_hplink">reports Reuters</a>. (Photo by Ethan Miller/Getty Images for Keep Memory Alive) 
  
 Oliver Stone & Ron Paul In January, Oliver Stone told <a href="http://www.rockcellarmagazine.com/2012/01/12/director-oliver-stone-on-history-and-america-jim-morrison-ron-paul/" target="_hplink">Rock Cellar Magazine</a> that he would vote for Ron Paul over Barack Obama if Paul was named the GOP nominee because "he's the only one of anybody who's saying anything intelligent about the future of the world." (Photo by Stephen Morton/Getty Images) 
  
 Also on HuffPost: ||||| Ha! Thank you for understanding my creative humor & sarcasm Mr. President, the smart ones always do… *sends love & support* @BarackObama — Nicki Minaj (@NICKIMINAJ) 10 Sep 12 
  
 Lest there be any lingering confusion: sometimes performers say things in the context of their work that they do not mean literally – political endorsements included. 
  
 Following a convention week in which Mitt Romney learned that celebrity testimonials were not all they are cracked up to be – just ask Clint Eastwood and his chair – the Republican presidential nominee received an unexpected shout-out from the hip-hop musician Nicki Minaj. 
  
 In a guest appearance on the track “Mercy,” from the Lil Wayne mixtape “Dedication 4,” Ms. Minaj, an artist known for her garishly imaginative outfits and a range of cartoonish voices to rival Mel Blanc’s, rapped, “I’m a Republican, voting for Mitt Romney.” She then completed the verse by rhyming it with a vulgar line about “lazy” people who were wreaking havoc on the economy. 
  
 While nothing about Ms. Minaj’s music is as simple as it may seem, some listeners took “Mercy” (which started appearing online around Sept. 3) at face value. Music Web sites like rapdose.com reported on the lyric with headlines that read “Nicki Minaj Endorses Mitt Romney,” while the gossip blog Gawker hedged its bets, asking readers, “Did Nicki Minaj Really Endorse Mitt Romney?” 
  
 However, there were clues in the song that Ms. Minaj was not describing a factual set of circumstances. For example, in the very next line of the song, she raps: “Out in Miami I be chillin’ with a zombie.” 
  
 There would also seem to be a general rule that applies to pop songs and other works of performance, under which artists are allowed to adopt fictional personae in the service of evoking an audience’s emotions. (To date, there is no evidence that Johnny Cash ever shot a man in Reno just to watch him die.) 
  
 President Obama appeared to suggest as much in an interview with the Orlando, Fla., radio station Power 95.3. Asked whether he thought Ms. Minaj’s lyric was an authentic endorsement of his rival, Mr. Obama said: “I’m not sure that’s actually what happened. I think she had a song on there, that – a little rap that said that. But she likes to play different characters.” 
  
 Ms. Minaj gave credence to the president’s interpretation of the song on Monday, writing in a post on her Twitter account: “Ha! Thank you for understanding my creative humor & sarcasm Mr. President, the smart ones always do…” |||||
Output:
Katy Perry, Jon Bon Jovi, Stevie Wonder, and Earth, Wind & Fire performed at a star-studded Obama fundraiser last night in LA, attended by supporters including, of course, George Clooney. The president took the opportunity to poke fun at his own debate performance, noting that singers like Perry perform perfectly each night, but "I can't always say the same," the Huffington Post reports. Clooney and Bon Jovi have long backed Obama, but what other, lesser-known celebs have gotten into the political fray? Clueless star Stacey Dash recently came out as a member of Team Romney. The National has performed at Obama rallies and campaigned for the president, one band member recently revealed that the group has received "hate mail on Facebook" for their trouble. Another indie band that prefers Obama? Silversun Pickups, which asked Mitt Romney over the summer to stop using one of its songs at events. Dee Snider also lashed out at the GOP, asking Paul Ryan to stop playing Twisted Sister hit "We're Not Gonna Take It." Adam Sandler and 50 Cent have both backed Republicans in the past. Britney Spears and Shannen Doherty have both made their support of the GOP public, too. And what about Nicki Minaj? Despite recently rapping a line supporting Romney, Minaj later clarified that she was just exercising her "creative humor & sarcasm" and actually supports Obama. But Romney has dibs on porn star Jenna Jameson.