Sam Asghari has been spotted working out in Hawaii, without his girlfriend of nearly four years, Britney Spears. The 27-year-old personal trainer was snapped going for a shirtless run on May 5 while vacationing on the island of Maui. He wore blue shorts for the workout and carried a grey shirt in his hand, which matched his grey and white sneakers. The Iranian-born hunk also carried a water bottle as he sported his signature beard and had a serious expression on his face.