Usher will be the mentor on "American Idol" next week for R&B and soul. Miley Cyrus, this week's mentor, comes out and performs.

I thought she was a great mentor, spot-on with her comments and supportive but truthful with the contestants. And she was amazingly poised, especially when you remember she's just 17.

She's singing "When I Look At You," and it's not bad. The thing about her is she's always working hard. but it's not effortless, which sometimes detracts from the song. A bit painful to watch at times, with all the sudden jerks -- she never gets lost in the moment, always cognizant that she's on stage.

Having said all that, it's a good performance. She's really very likeable. Miley, just don't become like Lindsay Lohan!

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MORE: Read all of our other "American Idol" posts

TALK: What do you think of Miley Cyrus? Click on "Add a comment" at the bottom of this post, or e-mail me and I'll post it for you.