Did Biebs over-imbibe with Selena and his grandparents?

Justin Bieber and girlfriend Selena Gomez reportedly had a bit of a rough night out in Florida after drinking too much at a sports bar before getting into an argument, according to the Tampa Bay Times.

“Justin stormed out of the bar and Selena chased him to the car,” a source says.

“His security team drove them down the street to an alley where they had a private conversation. They then returned to the restaurant and upon leaving they all seemed like they had a little too much to drink even though they aren’t old enough to drink.”

But the bar’s owner, Mark Ferguson, insists that while Bieber’s grandparents were drinking, the young stars were not.