We all know celebs love to cut loose -- and a few drinks will definitely get a party going!
First off, we've got Avril Lavigne holding on to a few friends while leaving a club -- and then there's Rob Gronkowski, who ran away from his own entourage to stage an impromptu photo shoot during a crazy night out!
Sonja Morgan showed that she was totally okay with a drunken make-out session after downing a couple drinks, and it's good to know that Tiffany Haddish remembered to stick with a designated driver!