Look out, ladies!
Single dudes Gerard Butler and John Mayer teamed up musically this weekend in NYC during Gerry's 41st birthday bash at the Darby, a source confirms to me.
First, the birthday boy sang Oasis's "Wonderwall" with John on guitar, then the men did a rendition of "Mustang Sally" together.
And even though Jennifer Aniston (with whom they've both been linked) wasn't at the soiree, her name was dropped that night...
PHOTOS: More stars on the NYC scene
According to Page Six, Aussie comic James Smith joked that Gerry and Bounty Hunter costar Jen had "as much sexual chemistry as Regis [Philbin] and Kelly [Ripa]."
Other famous faces actually in attendance included Jay-Z, Kate Hudson, Adrien Brody and Bono.
Nice turnout, huh?
No word on just how John and Gerry met, but a source tells me "they've been friendly for a while."
We smell a wingman match made in heaven!