Michael Buble doesn't think he is sexy.

The Canadian singer - who is set to tie the knot with Argentinean actress Luisana Lopilato on April 6 2011 - says he is never approached by women and can only see his self-deprecating sense of humour as the reason why people would fall for him.

He said: "They don't approach me and I don't think I'm sexy.

"If there is anything sexy about me maybe it's that I'm a goof and I don't take myself seriously. Isn't that kind of sexy? If you just take the p**s out of yourself a bit.

"I don't think sexy is, 'Hi, nice to meet you.' I sing beautiful songs and I mean what I say."

Michael split from his previous girlfriend Emily Blunt in 2008 amid rumours of his infidelity and he revealed their break-up taught him to be careful about discussing his love life.

He said: "I learned a lot and from now on my private life remains that. I'm not saying you have to be rude about it when people ask, but I just decline to speak about my love life."