Katy Perry with Timbaland entitled "If We Ever Meet Again", from his album "Shock Value II", in January 2010. The "Guinness World Records" recognized her in its 2010 edition as the "Best Start on the U.S. Digital Chart by a Female Artist", for digital single sales of over two million copies. After her relationship with Travis McCoy ended in December 2008, Perry met her future husband Russell Brand in the summer of 2009 while filming a cameo appearance for his film "Get Him to the Greek". Her scene, in which the two kiss, does not appear in the film. She began dating
Teenage Dream (Katy Perry song) guest and performed the song on "Saturday Night Live". On October 2010, she performed the song on "Wetten, dass..?" in Germany. Perry performed the song with actor Darren Criss for the first time on the "Trevor Project Live" on December 5, 2010. On February 13, 2011, Perry performed "Teenage Dream" at the 53rd Grammy Awards. The song was featured on the set list of the California Dreams Tour in 2011 as the opening act of the show. The show begins with a video screen introduction which tells the story of a girl named Katy who lives in a colorless world