Social media moguls be beefin', as in Facebook founder Mark Zuckerberg and Napster founder Sean Parker (you know, that guy who was plucked out of obscurity by a little film called The Social Network when he was played by Justin Timberlake?).

Zuckerberg and Parker were tearing up Tinseltown with a few friends, poppin' bottles and leaving $5000 tips, when they reportedly got into a booze-fueled argument about Parker's newest venture, a music sharing service (you should already know about) called Spotify.

According to a New York Post source, “Sean argued that all Spotify users should not be forced to sign up for a Facebook account, but Mark wouldn’t budge. It was a full on screaming match outside the club, but stopped short at coming to blows. They then stormed off in different directions.”

You know what, we're glad they are arguing about this. Maybe it will actually lead to fixing some of Spotify's weak spots, namely the fact that you're forced to broadcast your every music choice (not so good when you're on a Beiber-binge) and that you're unable to star songs while listening to their radio like you can on Pandora. 

We have several other tech gripes with Spotify and Facebook we're willing to help you resolve, get at us Zuck!

[Via NY Post]