Just look at Calvin Harris’ incredible transformation (pic)

In case you've forgotten, Calvin Harris hasn't always been a pin-up DJ superstar.

Back in the day he was a bit weedier and geekier looking than the Armani model you see today, with Harris undergoing a remarkable transformation in the last few years. The DJ posted this 'before' shot on Instagram this week... https://instagram.com/p/5srLWYt3Hk/ And here is the after shot... https://instagram.com/p/5pTAPbt3Ja/ To add to an already wonderful year, Harris is also dating Taylor Swift. It might be time to finally hit the gym...