Snoop, Vanessa Williams and Sherri Shepherd in Millionaire Hot Seat

Snoop Dogg, Vanessa Williams and Sherri Shepherd are among the stars booked for next month's 10th anniversary celebration of "Who Wants To Be A Millionaire" when host Regis Philbin returns to ABC for a two-week primetime event. As a special feature, each episode will conclude with a celebrity player taking the hot seat, hoping to correctly answer a single question worth $50,000 for his or her favorite charity.

Additional guest stars include Lauren Conrad, Patricia Heaton, Shawn Johnson, Steve Nash, Katy Perry, Rachael Ray, Wynonna and a "surprise guest."

The "Millionaire" event premieres Sunday (Aug. 9) from 8-9 p.m. and will air for 11 nights, Sunday-Thursday at 8 p.m., with the finale on Sunday, Aug. 23 from 8-9 p.m., ET

Vanessa Williams: Botox Queen

Vanessa Williams not only admits to using Botox, she’s signed on to promote it. The Ugly Betty star has teamed up with pharmaceutical company Allergan to launch the Botox Cosmetic Express Success Campaign to educate people about the treatment.

She tells Jet magazine, “The purpose for me is to maintain looking like myself. I am not trying to look like anybody else. I am not trying to change anything; I just want to maintain looking like who I am.”