The musical artists chosen to mentor AI hopefuls usually have an agenda themselves... like a new album or something else to promote.  Nonetheless, they do help contestants get closer to the real artist within.

It's impressive to watch the impact seasoned musicians make on the aspiring singers in this competition.  Speaking from previous years, the contestants who get the most out of learning from a pro are the ones willing to throw away what's safe (for a week) and take a chance.    

This year, there's no female with quite the assets of Dolly Parton or the vocal range of Mariah Carey... but singing with these sensations should liven things up a bit.  The same goes for the brilliance of Andrew Lloyd Webber and the legendary Neil Diamond's input.

In the upcoming weeks, you'll see all of the stars I just named interact with season seven's best.  I anticipate memorable moments.