Justin Bieber: I'm Staying 'Positive'!

Justin Bieber shows off his tattoo collection as he hits the stage for a concert on Tuesday night (March 19) in Paris, France.

The 19-year-old singer joined his tour mate Cody Simpson on stage for the 16-year-old Aussie singer’s last performance on the Believe tour.

PHOTOS: Check out the latest pics of Justin Bieber

“we keep it positive over here. thanks for all the love. #Paris get ready for a show tomorrow. #Believetour,” Justin tweeted the night before, after his ex Selena Gomez made a joke about him on Letterman.

25+ pics inside of Justin Bieber performing in Paris…