Leona Lewis, Natasha Bedingfield Among Guest Judges for Bravo's 'Platinum Hit'

Donna Summer, Jermaine Dupri, Taio Cruz and Ryan Tedder also will guest on the music competition featuring Jewel and Kara DioGuardi.

Bravo on Monday announced the guest judges and premiere date for its upcoming music competition series Platinum Hit.
The show, which will debut at 10 p.m. May 30, features 12 aspiring musicians battle through songwriting challenges centered around various themes. Jewel hosts and gives feedback alongside head judge Kara DioGuardi.
Guest judges will include Leona Lewis, Natasha Bedingfield, Donna Summer, Jermaine Dupri, Taio Cruz and Ryan Tedder.

Keith Naftaly, senior vp A&R for RCA/Jive Label Group at Sony Music Entertainment, also will serve as a judge throughout the competition.
One winner will receive a $100,000 cash prize, a publishing deal with Sony, BMI Songwriters the Writing Camp and a recording deal with RCA/Jive.
Watch a preview below.