Avril's Hubby Breaks Up Street Fight

Avril Lavigne and Deryck Whibley are usually the ones starting s**t with photogs, but last night, the Sum 41('memba them?!) frontman actually prevented a fight from going to nuclear proportions. Perhaps these two should go to Iran -- please!

The wannabe punk and her hubby were leaving Villa when a shoving match broke out between one of their friends and a paparazzo -- check out how Whibley handles the situation.