Neil Patrick Harris & Busy Philipps: Hooray for Hollygrove!

Neil Patrick Harris and partner David Burtka attend the “Hooray for Hollygrove” event held at The Hollywood Museum on Wednesday (April 25) in Hollywood.

Cougar Town‘s Busy Philipps also walked the red carpet, where she chatted about wanting her BFF, Michelle Williams, to make a cameo on her sitcom.

“This is not a joke – we can give [co-creator] Bill Lawrence all the s— we want for it. At the beginning of the show, in the first season, I told him, ‘My friend Michelle Williams wants to guest star on the show.’ And he’s like, ‘Yeah, yeah, yeah.’ And they never did anything with it!” she told E! Online.

“And then she was nominated for her third Academy Award and they’re like, ‘Hey, maybe one of your friends would wanna … ?’” Busy added. “I said, ‘I told you season one that she would do it! You lost her now to the third Academy Award nomination.’”

As for what role Michelle would take on, “I want her to play my bookish sister who hates me,” Busy shared.

FYI: Busy is wearing Juicy Couture.