Cher is attracted to men with who have a "great sense of humour".

The 64-year-old actress-and-singer is known for her penchant for younger guys but she insists she is more interested in men who can make her laugh.

She said: "I'm fascinated by men with great senses of humour. That's certainly a major thing for me."

When quizzed on whether she still prefers younger men, she replied: "I kind of do but now I'm so old that even the old men are younger than me."

One of the reasons why the 'Burlesque' star likes funny guys could be because she is immature and has never grown-up.

In an interview with the Metro newspaper, she said: "I'm just really immature. I have always been like that. My mother is like it too. She's 84 and really immature. The older we get, the more immature we get. I have no idea. I keep thinking I'm going to act like a grown-up woman someday. The only thing I'm responsible about is taking care of my family, otherwise I don't know how to act any different than I am."

Cher is currently in a relationship with comedian-and-writer Ron Zimmerman.

The iconic star and 52-year-old Ron started dating after striking up a Friendship on social networking website Facebook.

She previously revealed: "A girlfriend of mine knew him. He wrote her this funny stuff. So then Ron and I started writing to each other on Facebook. He thought that I was a Cher impersonator or a hooker - it never occurred to him that it was actually me.

'We played verbal volleyball for about a month until he called my friend and asked who I really was. She went, 'It's Cher.' Ron flipped out. Then we talked on the phone. I said, 'Why don't you come over and we'll meet? If I don't like you or you don't like me, you can just go home.' And that's how we met."

Cher was previously married to her musical partner Sonny Bono and has had romances with a string of famous men including Warren Beatty, Val Kilmer, Tom Cruise and Bon Jovi guitarist Richie Sambora.