Britney Making a Pussycat Dolls Cameo
06/05/2008 AT 12:30 PM EDT
"It's a small part," says a source about the popstar's visit to the L.A. set of the group's video shoot for their new single, When I Grow Up, on Wednesday. Possibly saving her trademark moves for her own album, Spears was not expected to dance or perform with the girls in the video.
While her recent TV meetings (she was spotted exiting the Merv Griffin offices last week) were strictly exploratory, How I Met Your Mother star Neil Patrick Harris told PEOPLE at an Academy screening of the show at McGee's Bar & Grill in Manhattan, they would be happy to have her back for a third time saying, "The door is open for her."
Additional reporting by LAURA HAHN