Britney Spears claims Justin Timberlake cheated on her with another celebrity, who she says is now 'married with kids'.
For years, people speculated that the ‘Gimme More’ singer cheated on her former boyfriend, who she dated between 1999 and 2002 - which only increased following the release of Justin’s massive hit song ‘Cry Me a River’ in 2002.
As it turns out, that's not the full picture.
While Britney admits she did cheat on Justin at one point, in her new memoir The Woman in Me, she claims he was also unfaithful to her on 'several' occasions.
One such instance involved a certain someone who is 'very popular' now, although Britney chose not to name her.
There were a couple of times during our relationship when I knew Justin had cheated on me," she says in the book.
"Especially because I was so infatuated and so in love, I let it go, even though the tabloids seemed determined to rub my face in it.
"When NSYNC went to London in 2000, photographers caught him with one of the girls from All Saints in a car. But I never said anything. At the time we'd only been together for a year.
"Another time, we were in Vegas, and one of my dancers who'd been hanging out with him told me he'd gesture toward a girl and said, 'Yeah, man, I hit that last night.'
"I don't want to say who he was talking about because she's actually very popular and she's married with kids now. I don't want her to feel bad."
Britney added: "There were rumours about him with various dancers and groupies.
"I let it all go, but clearly, he'd slept around. It was one of those things where you know but you just don't say anything."
In her memoir, Britney also explained she had plans of starting a family with Justin, but that he insisted they were both too young to become parents at the time.
“It was a surprise, but for me, it wasn't a tragedy," Britney said.
"I loved Justin so much. I always expected us to have a family together one day. This would just be much earlier than I’d anticipated.
"But Justin definitely wasn’t happy about the pregnancy. He said we weren’t ready to have a baby in our lives, that we were way too young."
The Woman in Me is out now.