Singer Katy Perry attends the premiere of her musical documentary "Katy Perry: Part of Me", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on June 26, 2012. UPI/Jim Ruymen
Singer Katy Perry attends the premiere of her musical documentary "Katy Perry: Part of Me", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on June 26, 2012. UPI/Jim Ruymen
Singer Katy Perry attends the premiere of her musical documentary "Katy Perry: Part of Me", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on June 26, 2012. UPI/Jim Ruymen
Singer Carly Rae Jepsen attends the premiere of the musical documentary "Katy Perry: Part of Me", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on June 26, 2012. UPI/Jim Ruymen
Singer Carly Rae Jepsen attends the premiere of the musical documentary "Katy Perry: Part of Me", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on June 26, 2012. UPI/Jim Ruymen
Singer Carly Rae Jepsen attends the premiere of the musical documentary "Katy Perry: Part of Me", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on June 26, 2012. UPI/Jim Ruymen
Singer Katy Perry attends the premiere of her musical documentary "Katy Perry: Part of Me", at Grauman's Chinese Theatre in the Hollywood section of Los Angeles on June 26, 2012. UPI/Jim Ruymen