Avicii After Surgery -- Stitch Me Up When It's All Over

Veni, vidi, Avicii -- the DJ is officially on the mend after undergoing gallbladder surgery last weekend ... hitting Miami Beach Thursday with this GF ... while sporting a brand new bandage under his ribcage.

As we reported, Avicii was forced to bail on his Ultra Music Festival gig last week due to severe abdominal pains, nausea, and a fever. He got his gallbladder removed Saturday and the surgery went well.

Avicii spent a few days in the hospital recovering, but he's since been released.

Maybe the Ultra curse isn't so bad after all.