Choreographer Wade Robson brought allegations last week
Frontman is accused of targeting his estranged wife
Coach laments his contestant choices as live playoffs continue
English rocker set to release new album, 'Totem and Taboo'
Band takes roots route with Led Zeppelin's rock classic
Ominous song comes from latest LP 'Ghost on Ghost'
NBC will extend the last episode from an hour to 75 minutes