Drake got slapped with a hefty fine for his Dallas concert going way past the allowed time -- 'cause, as they say ... money ain't a thang.
Drake performed at American Airlines Center Thursday night -- he got a late start -- and when the clock struck midnight, he was officially in overtime. TMZ has learned the arena fined him $6,500 for every 15 minutes he played past 12.
Drizzy even told the crowd he was going over, and he didn't care if he had to pay.
He ended up performing until 12:35, so the show's gonna cost Drake an extra $13k.