We apologize for missing Stephen Colletti in our celebrity birthday post earlier today. The Laguna Beach product turned 22 on February 13!
Stephen, who famously two-timed Lauren Conrad and Kristin Cavallari - how we would love to have been in his shoes - also dated Hayden Panettiere.
Seriously, does this guy have a monopoly on hot girls under 22?
Not on his birthday, apparently, as he arrived solo to his party, which kicked off at Stack restaurant at The Mirage in Las Vegas on Friday before moving on to JET Nightclub. But Colletti seemed to be digging his single status.
Throughout the night, Stephen Colletti threw back Red Bull and vodka cocktails and "got very chatty with a slew of sexy ladies," says one fellow club-goer.
"He spent most of the night dancing as each [woman] patiently waited her turn to groove with the eligible bachelor."
Eventually, Stephen Colletti took a breather to blow out the candles on his cake by designer Jean-Philippe Patisserie before hitting the dance floor.
He called it a night around 3 a.m.
Neither Lauren Conrad or Kristin Cavallari were present to help their former squeeze celebrate, although LC and he have hung out lately.