Miley Cyrus is taking on a new role tonight - mentor for the top 11 contestants in "American Idol."

It'll be interesting to see how someone Miley's age is able to mentor singers like Siobhan Magnus and Crystal Bowersox who take their cues from singers, well, older than Miley.

Miley will also be performing "When I Look at You" on Wednesday night's results show.

Earlier reports - and judge Simon Cowell - had suggested Lady Gaga which would have been well worth tuning in for.

Anyway, we're stuck with Miley.

God alone only knows what the contestants will think.

But then again, Miley has made it big time so maybe youth will beat age on this one!