MONA TAKES CHARGE OF VALENTINE'S DAY WHEN SHE THINKS HER BOYFRIEND HASN'T MADE PLANS, ON "HALF & HALF," MONDAY, FEB. 13 ON UPN

Michelle Williams of Destiny's Child Guest Stars as Naomi Dawson, Joey Lawrence ("Blossom") Guest Stars as Brett Mahoney, Lamman Rucker ("All My Children") Returns as Chase and Matt Cedano ("Days of Our Lives") Guest Stars as Franco

"The Big My Funny Valentine Episode" -- Convinced that her new beau Chase (guest star Lamman Rucker) hasn't made any elaborate Valentine's Day plans, Mona takes charge; and Spencer finds himself on a secret Valentine's Day rendezvous with rival record producer Naomi Dawson (guest star Michelle Williams), on HALF & HALF, Monday, Feb. 13 (9:30-10:00 PM, ET/PT) on UPN. Ellen Gittelsohn directed the episode from a script by Yvette Lee Bowser and Jamie Wooten.

Meanwhile, Dee Dee attempts to set up a bitter and dateless Brett (guest star Joey Lawrence) with one of her girlfriends, Jenna, for Valentine's Day; and Adam hooks up with his annual Valentine's Day date, Franco (guest star Matt Cedeno), who unexpectedly wants more from the relationship.

Mona Thorne: Rachel True
Dee Dee Thorne: Essence Atkins
Phyllis Thorne: Telma Hopkins
Big Dee Dee Thorne: Valarie Pettiford
Spencer Williams: Chico Benymon
Adam Benet: Alec Mapa
Brett Mahoney: Joey Lawrence
Chase: Lamman Rucker
Naomi Dawson: Michelle Williams
Jenna: Christina Chambers
Franco: Matt Cedano

RATING: To Be Announced