Niall Horan, 27, is in shape! The British star rocked just a blue pair of shorts, white Nike socks and Nike sneakers as he exercised in Los Angeles on Thursday, Jan. 21. Niall opted to go shirtless as she showed off his toned torso while standing atop a black exercise machine, holding a white shirt or towel in his right hand. He appeared to be in a garage-like area that was fairly empty, perfect for getting in at-home workout on a warm, sunny day.