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Fergie and Josh Duhamel's relationship has seen its share of ups and downs and the Black Eyed Peas singer recently opened up to Oprah regarding one particular incident.

In 2009, nine months after their marriage, the Transformers star was allegedly involved in an affair with Atlanta stripper Nicole Forrester. While Duhamel publicly denied the accusations, Fergie decided to speak on the subject for the first time.

"When you go through difficult times, it really makes you stronger as a unit, as a partnership. It does for us, anyways. Our love today is a deeper love, definitely," Fergie said during her sitdown on the next episode of Oprah's Next Chapter. "We're stronger today definitely because of anything difficult that's happened with us. We deal with it, we communicate; communicating's the most important thing."

The Life As We Know It actor added to his wife's statements while talking to the 58-year-old host. "We've both had to work for what we got," Duhamel said. "We're both Catholic. There were a lot of things that were really compatible between us, but at the end of the day, she's just an amazing girl."

Watch a clip of Fergie and Josh's full interview below and catch it in its entirety when Oprah's Next Chapter airs this Sunday on OWN.