Justin Bieber  took the saying, "No shirt, no problems," to heart on Saturday. The singer was spotted on the beach in Panama, scoring some rays while relaxing with pals and his bodyguards. Despite being followed by a throng of fans, Justin let loose and tossed a football in a video shared on Instagram. Justin's private jet touched down in Panama a few hours after taking off in Miami on Friday, putting an end to his wild and well-documented week  in Florida. The singer was arrested early Thursday for drag racing in a residential neighborhood in Miami Beach, suspicion of DUI, and resisting arrest. In recent days, Justin reportedly rejected his management's suggestion that he return to LA and consider checking into rehab. According to reports, Chantel Jeffries, the 21-year-old model who rode in Justin's passenger seat , is accompanying the star in Panama.