Jonathan Lipnicki Turns 21 in Vegas

And now we feel old: Jonathan Lipnicki, aka the Kid From "Jerry Maguire," turned 21 over the weekend with a celebration in Sin City.

Lipnicki, who was 5 years old when he portrayed Renee Zellweger's precocious son ("bees and dogs can smell fear") in the Tom Cruise sports movie, partied at the Vegas nightclub Surrender in the wee hours of Saturday morning. The actor (that's him on the right alongside DJ Steve Aoki) downed hangover-inducing shots and Grey Goose cocktails with an entourage of a dozen friends, a source tells The Famous.

Since his "Jerry Maguire" breakout, Lipnicki's acting career has mostly stagnated (his last role: doing voice-over for the short-lived series "Glenn Martin DDS.") In an interview with People magazine last month, Lipnicki said he intends to stay in the game:

"I live in Hollywood," observed the five-foot-seven, 150-pound star. "Go three feet and you will run into someone more cut and better-looking than me. For me working out is more about keeping my temperament great. Jujitsu and lifting keep me very even."

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