MONA TRIES TO COMPETE WITH DEE DEE BY BUYING A HORSE ON THE INTERNET, ON THE SEASON PREMIERE OF "HALF & HALF," MONDAY, SEPT. 20 AT 8:30PM ON UPN

Rupert Boneham ("Survivor") Guest Stars As Paul the Horse Trainer Rapper MC Lyte Guest Stars as Kai

"The Big My Little Pony Episode" � After learning that Dee Dee has been lying to her since they were kids about owning a horse, Mona lets sibling rivalry get the best of her and buys a horse of her own over the Internet, but when the horse trainer, Paul (guest star Rupert Boneham), arrives with her new horse, Mona realizes that she's been "short" changed, on the season premiere of HALF & HALF, Monday, Sept. 20 (8:30-9:30 PM, ET/PT) on UPN. Ellen Gittelsohn directed the episode from a script by Yvette Lee Bowser.

Meanwhile, when Spencer�s relationship with record label boss Kai (guest star MC Lyte) turns from hot to cold, Adam steps in to investigate why Spencer is in the doghouse.

Mona Thorne: Rachel True
Dee Dee Thorne: Essence Atkins
Phyllis Thorne: Telma Hopkins
Big Dee Dee Thorne: Valarie Pettiford
Spencer Williams: Chico Benymon
Charles Thorne: Obba Babatunde
Adam Benet: Alec Mapa
Kai Owens: Lana Moorer a.k.a MC Lyte
Paul: Rupert Boneham
Young Mona: Penny Bae Bridges
Young Dee Dee: Gabby Soleil

RATING: To Be Announced