Digital Spy snuck into BBC Television Centre yesterday (February 28) for an exclusive preview of this week's Let's Dance for Comic Relief performances.
Vanessa Feltz, Lee Nelson and Britain's Got Talent duo Twist and Pulse, ventriloquist Nina Conti and Newsround presenters Ore Oduba and Sonali Shah showed off their moves during last-minute rehearsals for tomorrow's (March 2) show.
Asked to sum up her dance, 51-year-old Feltz promised an "arousing" and "near the knuckle" display, saying: "I'm going to bare almost all my buttocks and thighs and breasts and just everything else I've got going on."
She added: "Lady GaGa's followers, once they've seen me doing this, I'm going to exceed her."
Oduba commented that his dance with Shah would feature "a lot of shaking from downtown" and "thrusting", while Conti - accompanied by her ape acquaintance Monk - predicted that hers would be a "disaster".
"I've never squatted so much in my life," she jested.
Jodie Prenger will also compete in the third Let's Dance for Comic Relief heat, which this week will be judged by Radio 1 DJ Greg James, former Strictly Come Dancing panellist Arlene Phillips and comedian Lee Mack.
Antony Cotton, Katherine Ryan, Tim Vine and the Soap Stars previously won spots in the show's final on March 9.
Let's Dance for Comic Relief, hosted by Steve Jones and Alex Jones, continues Saturday at 7pm on BBC One.