Most of the time these days, he's best known as a doting father to Sean Preston and Jayden James. And his other kids Kaleb and Kori.
But on Friday night, Britney Spears' ex-husband took a break from parenting to ring in his 30th birthday at Pure Nightclub in Las Vegas.
Also known as Kevin Federline's home away from home.
A dapper-looking Federline - the subject of this week's Caption Contest at The Hollywood Gossip - said he felt "great" about turning 30.
Flanked by a group of 20 pals, including his family members and attorney Mark Vincent Kaplan, Federline headed straight to his VIP table.
Also on hand? Ex-girlfriend and baby mama Shar Jackson!
K-Fed: A year older, not necessarily wiser.
Throughout the evening, K-Fed and his entourage sang along to tunes by Jay-Z, Kanye West and other hip-hop artists.
At one point, the DJs played Federline's own song "Lose Control," familiar to the club considering its music video was shot there in 2006.
Close to midnight, Kevin Federline danced on a couch by his table and held up a California license plate saying "FDRLINE" while drinking Jack Daniel's.
Later on, the FedEx man grabbed the mic for a rambling profanity-laced speech in which he encouraged everyone to have "a good time."
"I lost my voice at the craps tables and I lost all my money," he went on to say in a raspy voice, before a friend dragged him away.