“Happy birthday [Kevin Jonas],” Joe Jonas posted to Instagram on Nov. 5, the day Kevin celebrated turned 33. Joe, 31, lovingly poked fun at his older brother by sharing a throwback photo to when they were both babyface youngsters taking the pop world by storm as the Jonas Brothers (which you can see here.) “Love you like a brother. Miss you mate! Can’t wait to hang when it’s time!” added Joe. “P.S. I can’t tell if that’s a mystery tooth or gum in your mouth.”