Michael Buble's wife thought he was gay when they first met.

The 'Haven't Met You Yet' hitmaker has revealed his spouse Luisana Lopilato was convinced he wanted to hit on her male friend rather than her.

Recalling their first meeting, Michael said: ''She walked in this room with a man, and the man was so good looking that he made Brad Pitt look dumpy, so I assumed they were together. I naturally assumed that this was her boyfriend or her husband, so I refused to hit on her.

''I finally said, 'You guys are such a beautiful couple,' and he said, 'We're not together.' He said, 'She came because she likes you.' And at the same time, she was on the phone texting her mom saying, 'Oh my God, Michael Bublé is all over my friend. He's so gay.''

However, the 41-year-old singer - who has Noah, three, and Elias, 10 months, with Luisana - admits he finds it hard to tell whether men are hitting on him.

He added to PrideSource: ''I have the worst gay-dar ever. I really do have the worst gay-dar. I could be hanging with somebody and my friends will be like, 'Michael, he was hitting on you hard,' and I'm like, 'What are you talking about - he's just a really nice guy!' Sometimes I don't pick up the s**t people are putting down.''

Meanwhile, Michael previously admitted he handled fame ''very poorly'' at the beginning of his career.

He said: ''Fame stunts your growth. I handled it very poorly. I regret the way I treated a lot of my family and even myself. I was reckless with hearts. But I got my karma. Early on, I wasn't equipped to handle it. That's why you have to have people around you who love you enough to put you in your place ... We all battle with our own demons. A lot changed when I had kids.''