Another day, another bombshell revelation from Britney Spears's upcoming memoir.

Days after she shook the internet by revealing she had an abortion when she was 19 years old after becoming pregnant with boyfriend Justin Timberlake's baby, the pop star provided even more intimate details about their relationship in her book, The Woman in Me.  

In an excerpt shared with The Sun, Britney revealed that she once had a one-night fling with dancer and choreographer Wade Robson while she was still dating Timberlake. “We were out one night and we went to a Spanish bar. We danced and danced. I made out with him that night,” she wrote, adding that Justin ultimately "agreed to move past" her cheating. Britney then explained that she was "loyal to Justin" for years and "only had eyes for him."

Elsewhere in the book, Britney claimed that Justin was also unfaithful during their three-year relationship. Spears wrote that Timberlake cheated on her with "another celebrity," but refused to name who it was out of respect for the woman and her family, as she is now "married with children."

While Britney wouldn't name names, many fans believe it was singer Nicole Appleton, who was part of the English girl group All Saints. This week, an old newspaper clipping began to resurface on social media, showing Timberlake and Appleton in the back of a car together while heading back to his London hotel in 2000. 

Despite both of them allegedly cheating, Timberlake capitalized off Spears' scandal by suggesting they broke up because of her infidelity in the music video for his song "Cry Me a River" back in 2003. Speaking about the controversial video at the time, Britney told Rolling Stone: “He got what he wanted. I think it looks like such a desperate attempt, personally. But that was a great way to sell the record. He’s smart.”