Talking about hairstyles, Calvin has tried a lot of them which include our personal favorite–his oh so gorgeous casual short straight haircut. This haircut is all about his dark locks incorporated with shades of blonde. What we love about this hairstyle is its neat appearance. The singer doesn’t actually apply any hair products like hair gels to make it look stiff. His hair just naturally settles itself in a clean order, making him look just naturally irresistible.