Former American Idol finalist Blake Lewis has written a song all about his celebrity crush on actress Natalie Portman. The spiky-haired singer admits new tune "Know My Name" is a love song to the actress.

He says, "It's about the idea of having a celebrity crush when you see someone in a magazine and you just like her for some reason and think, 'I could be with that girl...' It's based on Natalie Portman."

The song leaked already. I liked it as soon as I heard it, but after reading the lyrics and finding out what it's about ... wow. The kid's a genius ... and I'm sure we all can relate to crushing on celebrities. :p ;)