Calvin Harris -- a singer/songwriter, record producer and DJ -- can add model to his impressive resume. The musician flexed his muscles for a shirtless high fashion photo shoot, tweeting on Dec. 16, 2014: "Need more stepladders #Armani #BehindTheScenes #LaughingAboutSomething."
Before Calvin Harris became the superhot DJ posting shirtless selfies on social media, he looked a bit different. Years ago, he had long, dark hair and sported bright t-shirts and glitzy sunglasses when he hit the spotlight. Nowadays, the DJ is the face