Indie rockers Yeah Yeah Yeahs [ tickets ] will replace the Beastie Boys as a headlining attraction at this year's Lollapalooza Festival in Chicago. The move comes after Adam "MCA" Yauch of the Beasties revealed his throat cancer diagnosis, which will prevent the hip-hop trio from touring this summer, and will also push back the release date of the band's new studio album. The Aug. 8 Lollapalooza appearance is just one of a number of big-name festival obligations Yeah Yeah Yeahs have