Pop star Fergie once made out with one of her Black Eyed Peas bandmates.

The "My Humps" hitmaker, who is now happily married to actor Josh Duhamel, cuddled up to the 37-year-old Pea one lonely night on tour, but when band leader will.i.am caught wind of the romance, he forbade the couple from taking its relationship any further in order to protect the longevity of the band.

Fergie tells Oprah Winfrey, "One time, it was at night, we had been drinking, [he] and I made out...

"Of course will.i.am hears about it the next day and calls a meeting, saying, 'We can't have this is, this is business, we have to have a business relationship. This is how groups break up.' It was kind of weird. We just looked at each other like, 'We're on tour, it's not that serious.'"

So who was it?

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