The band also did a lot of charity. They raised money to help victims and survivors of Hurricane Charley in 2004 and later Hurricane Katrina in 2005. The band donated $75,000 to the Special Operations Warrior Foundation in March 2004. They also helped efforts for the 2004 Indian Ocean tsunami victims by performing in many charity concerts and starting their own charity, Music for Relief. Their most famous charity concert was Live 8, a number of concerts for charity for awareness worldwide. They performed with Jay-Z on Live 8's stage in Philadelphia, Pennsylvania, with an audience around the world. The band would later be reunited with Jay-Z at the 2006 Grammy Awards. Linkin Park and Jay-Z performed "Numb/Encore" with Paul McCartney who added lyrics from the song "Yesterday". "Numb/Encore" won the Best Rap/Sung Collaboration award. They would later perform at the 2006 Summer Sonic music festival, which was hosted by Metallica in Japan.