While he’s recently been in the limelight for doting over his estranged ex, Britney Spears, Kevin Federline made his mark in Sin City over the weekend.

K-Fed, who sported a blazer and posed with a gaggle of go-go dancers, spent Saturday night at the Revolution Bar inside the Mirage Hotel, where he helped celebrate the Beatles.

No word yet on who watched over Spears and Federline’s two sons, Jayden James and Sean Preston, while Kevin hit the town.