Kid Rock Turns 40

KID Rock knows how to party.

The rocker celebrated his 40th birthday Saturday night by taking to the stage in front of tens of thousands of fans in his hometown of Detroit.

More than 45,000 tickets sold out in only 19 minutes for the special birthday concert at Ford Field, the city’s downtown NFL stadium, in honor of the man born Robert Ritchie.

Uncle Kracker joined Rock on stage for Good To Be Me. Talk show hosts Conan O’Brien and Jay Leno appeared on two oversized video screens on either side of the stage in taped messages wishing their friend a happy birthday.

O’Brien told Rock, “Happy 40th birthday … and rock on Detroit!”

Kid recently revealed how he juggles his partying with a career.

“I can say I balance my life pretty well,” he said.

“I’ve never been back and forth to rehab, I’ve done it all — there is no question about it — I still play around a little bit here and there but I always try to balance it out. It’s not the drugs and the partying that get people so much, it’s the fame.”