(Cover) - EN Showbiz - Jason Segel once serenaded a girlfriend with a Sir Elton John song and she believed he'd written it.

The American star has discussed the lengths he's gone to in order to impress his partners in the past. When he was a young man, he decided the way to a woman's heart was through music.

"I once took piano lessons only to impress a girl. Then I played Elton John's Your Song and told her I had written the song for her. She wasn't the smartest," he laughed to stern.de.

Jason thinks having a good sense of humour helps on the dating scene. It's especially important in Hollywood, where people sometimes obsess about appearances.

"Yes, it helps. Beauty disappears at some point. Humour stays. At the end of the day we all look for a partner who we can spend some time with. It can't be all about sex," he said.

"Well, sex doesn't last very long. After one, two minutes. No, I'm just kidding. I meant 30, 40 seconds, then the show is finished"

Jason is currently dating actress Michelle Williams and says he would leave everything behind for the sake of his lover "without batting an eye".

"There probably isn't one in real life. But I think if you meet someone who makes you a better person that's a pretty good start," he said, when asked about the perfect relationship. (C) Cover Media