American Idol: 712 (Rock & Roll Hall of Fame) (4/21)

SUNDAY, APRIL 21
8:00-10:01 p.m. EDT - American Idol: "712 (Rock & Roll Hall of Fame)" (712)
Logline: Performing live from Hollywood in front of judges Luke Bryan, Katy Perry and Lionel Richie, the Top 14 take on songs from Rock & Roll Hall of Fame inductees as America votes. By the end of the show, the Top 12 will be revealed. Ryan Seacrest hosts.

(TV-PG, L) Watch episodes next day on Hulu.