Fergie (L) and Taboo of the Black Eyed Peas walk off the stage following the group's performance during half-time at the NFL's Super Bowl XLV football game in Arlington, Texas, February 6, 2011. (Reuters/BRIAN SNYDER)

Pop star Fergie once made out with her Black Eyed Peas bandmate Taboo.

The 'My Humps' hitmaker, who is now happily married to actor Josh Duhamel, cuddled up to the 37-year-old rapper 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, Taboo 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.'"