At the grand opening of the Fontainebleau Las Vegas, while enjoying a Justin Timberlake concert, Gates was as stiff as a board in his attempt to get his groove on.
Watch the video:
From TMZ:
Bill looks like he's got that sunshine in his pocket and that good soul in his feet ... and he's moving so phenomenally next to his girlfriend, Paula Hurd.
Other celebs going electric and wavy during Justin's set included former NFL star Rob Gronkowski and his S.I swimsuit model GF Camille Kostek.
Cher was also dancing with her boyfriend Alexander "AE" Edwards ... and Lenny Kravitzwas moving and grooving in his seat, a few chairs down from Kim Kardashian, Kendall Jenner and Ivanka Trump.
As we reported, Hollywood flocked to the desert for the Miami landmark's expansion to Las Vegas, gambling and schmoozing inside Jeff Soffer's resort.