Previously we told you that Miley backs out of American Idol, E! news has the awnser.

Sources tell E! News exclusively that Miley had been invited to appear on Idol Wednesday for a “surprise appearance,” with producers wanting her  to sing alongside finalist Hollie Cavanagh.

But it was too difficult to coordinate rehearsal schedules. “It’s not  happening,” Miley’s rep tells E! News. “It didn’t come together in time.”

source: uk.eonline.com