AVRIL LAVIGNE PERFORMS FIRST TIME IN YEARS WITH NICKELBACK, EX CHAD KROEGER

Avril Lavigne did something Friday night she hasn’t done in more than 3 years … take the stage.

Avril was at a Nickelback concert at the Greek Theatre in L.A. when she grabbed a mic and performed ‘Rockstar’ with her ex-hubby and Nickelback front man Chad Kroeger.

You may recall, they got hitched in the South of France, a month after they started dating back in 2013.  It did not go well. They were single again within 2 years.

Apparently, no hard feelings.

TMZ