Kevin Federline backstage at a Superbowl venue on Miami's South Beach. Britney Spears' ex happily poses for photos and shakes hands with members of the public. K-Fed, who is in town after starring in a controversial advert to be screened at half-time, can be seen just hanging out with his entourage, smoking, drinking and texting furiously. But he is hardly keeping a low profile by picking a table on the pavement of one of the town's busiest roads. He can also be seen walking through the crowds on Ocean Drive.