It's official... we've seen them snogging!

Who knew? Mischa Barton and Luke from the Kooks are dating!

Here they are locking lips at a Comedy club in London last night.

The couple stepped up their relationship last night, sharing their mutual love of smoking ciggies as they headed for the entrance of a London comedy club... tsk.

Inside Luke Pritchard was seen nibbling on Mischa's earlobe, for everyone to see! Mischa went in for the kill and went into a full-on snog with the singer.

Maybe this will be the year for another celeb marriage!