Halle Berry cozies up with Muhammad Ali at his Celebrity Fight Night event in Arizona.

Actors Billy Crystal and Kevin Costner pose together at the Muhammad Ali Celebrity Fight Night event.

Reba McEntire and Kelly Clarkson perform onstage at the Muhammad Ali Celebrity Fight Night hosted at the JW Marriot Desert Ridge Resort & Spa.

Bret Michaels and Kristi Gibson pose on the red carpet.

American Idol winner Jordin Sparks shows off her super hot figure in a black mini dress.

Nice guns, Reba!