It's a clash of the moms on Rick and Steve tonight as the happiest gay couple has to survive a Mother's Day with both of their mothers. Also, Kathy Griffin visits The Tonight Show and the Sundance Channel premieres the acclaimed musical Les Chansons d'Amour.

Check out the full listings after the break!

The Biggest Loser (NBC) 8:00 PM EST
It's another NBC/Bravo reality TV crossover tonight as Project Runway winner Christian Siriano and Shear Genius fan fave Tabatha Coffey show up to give a makeover the final five on NBC's weight loss competition. I know Tabatha is the one with her own Bravo show, but at this point I'd be more excited to see Paulo or Dee from Shear Genius' season two's Team Rainbow.

Rick & Steve: The Happiest Gay Couple in All the World (Logo) 10:00 PM EST
Mother's Day hits West Lahunga Beach and Rick and Steve find they've got quite a day to deal with when both of their mothers visit at the same time and quickly start hating each other. Considering the different takes they two women have about their sons' relationship, this could get very interesting. At the end of today's listings, you can check out a preview.

Les Chansons d'Amour's Louis Garrel and Grégoire Leprince-Ringuet

Love Songs (Les Chansons d'Amour) (Sundance) 11:30 PM EST
Sundance premieres another French film tonight with this gay-inclusive musical about love and loss in Paris. I'd try to explain the plot a little more but between this and last night's Les Voleurs, I'm having flashbacks to the time I tried to explain The Aviator's Wife to people. For more on the quirky flick, head on over here.

The Tonight Show (NBC) 11:35 PM EST
Kathy Griffin is scheduled to visit Jay Leno tonight. Hopefully we'll get a few glimpses into the upcoming season of My Life on the D-List.