I really think he just showered because I've seen guys with that hair length and looking just like Mika's hair, claim they've just showered. It looks too damp to me to be sweat. If he were sweaty, I think his shirt and face would've been, too, but he looks very clean and dry besides the hair.
I may be wrong, but I think the case was: He just performed, got sweaty, showered quickly for the interview afterward and didn't have time to dry his hair.
Quote from cath85: I think so too! I love that look a lot!
Thank you for agreeing with me, cath85. I have to be honest, I think I like that look on most guys, but not Mika. I prefer Mika with fully dried and curled hair.