Bee Gees, Christina Aguilera, Hall and Oates, Michael McDonald crash Idol final

 
The two hour Idol final took a familiar performance pattern, as one or more contestants would begin singing a famous song from an established artist, and then part way through it they would be joined by that artist. The drill saw the Bee Gees take the stage to collaborate with Siobhan Magnus and Aaron Kelly, while Michael Lynche was joined by the Doobie Brothers’ Michael McDonald in a case of dueling Michaels. Later, an ensemble of female contestants was joined by Christina Aguilera, who then performed solo, and the male contestants were joined by Daryl Hall and John Oates.