Celeb Twitter Pics: The Rock's Muscles at Age 8 — And More! (PHOTOS) 2 of 3 Previous Autoplay Next Share Tweet July 30, 2013 at 08:00AM EDT by Dan Clarendon Related: News, TV Stars full size Credit: Usher on Instagram Usher Ushers in Muscles And this is what Usher looked like at age 8! Just kidding. As far as we know, this is a current shot of the 34-year-old singer and Voice coach. He posted it to Instagram on July 24.