Who is Dating Avril Lavigne?

This Canadian punk princess is married to, fellow Canadian and lead singer for Sum 41, Deryck Whibley.

Update 9/2009:  Unfortunately this marriage did not last.  The two have officially separated.  You can see the full story here.

Update 3/2010: I guess the rumors of Avril dating Brody Jenner are not completely false? Seems odd since I saw reports that her and her ex, Deryck, had gotten tattoos together this week.  I thought maybe a reconciliation was coming.