11/10/2010 AT 1:00 PM ET
11/10/2010 AT 1:35 PM ET
In addition to dropping the ‘F’ word for her upcoming appearance on Glee, Gwyneth Paltrow pulls of a “really hard dance number,” according to show creator Ryan Murphy.
“She had to sort of stamp around with Matt [Morrison] and the kids in a full tank of water for 12 hours,” Murphy told PEOPLE at the 24th Annual Emery Awards in New York on Tuesday. “She loved it, actually. She’s just the best.”
Paltrow, who is set to perform at Wednesday’s CMA Awards, will sing a mash-up of “Singin’ in the Rain” and Rihanna’s hit “Umbrella” on the episode airing Tuesday (8 p.m. ET).