"Well, my boyfriend [music producer Richard Perry] and I like to dance," the Oscar winner explained. "I spent 20 years in Atlanta. You don't have a party in Atlanta that's fun if you're not dancing. ... We decided that we were just going to have parties with no purpose except for people to dance."
"There's a core group," she revealed. "There's Chelsea Handler, Mary McCormack, Catherine Keener, the directors Bennett Miller [Moneyball, Foxcatcher], Spike Jonze, Ellen Page -- she dances like a little ladybug, she's so cute."
Obviously, James, and Jane's fellow guest Elizabeth Banks -- who said she's only been to two of Jane's dance parties as a "plus one" -- want to get on the guest list. But the Grace and Frankie actress hilariously makes them work for it, asking the two of them to audition together first.
Check out James and Elizabeth's surprisingly sexy dance moves in the video below!
If this doesn't land them invitations, we don't know what will.