Fans were treated to something special in Miami for the Femme Fatale tour with Britney Spears and Nicki Minaj last week. Nicki brought out MIA local Sean Kingston for their song "Letting Go" it's the first time Kingston has made a apperance in public since his jet ski accident a few months ago. Sean has lost a ton of weight, but overall looks good and was in good spirits. After the show Kingson tweeted: "Me and the beautiful @Nickiminaj on stage! Don't call it a comeback!" Check out the performance below!