Justin Timberlake allegedly "bragged" about being intimate with someone else during his relationship Britney Spears, who has claimed that he "cheated" on her a few times.
Britney, 41, mentions her ex-partner Justin, 42, in her new memoir the Woman in Me. She makes a series of claims about him in the newly-released book, after having been in a relationship with him from around 1999 until 2002.
She alleges that he "cheated" on her and suggests that she in turn was unfaithful too. Britney - who wrote about various past relationships in the memoir, which was released today - spoke about Justin in several chapters of the book.
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Justin Timberlake (pictured) is mentioned in his ex-partner Britney Spears' new memoir (Getty Images for MTV)
Britney's book the Woman in Me, in which she discusses various past relationships, has been released today (PA)During one chapter in the book, Britney claims there were a "couple of times" during their relationship that she "knew" Justin had "cheated" on her. However, she said that she "let it all go," saying that she was "so in love" with him.
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Britney claims that while in Las Vegas once, one of her dancers, whom she said had been spending time with Justin, alleged that he'd admitted to intimacy with someone else. She didn't name the person allegedly involved.
She said while discussing her relationship with Justin in the book: "[One] time, we were in Vegas, and one of my dancers who'd been hanging out with him told me he'd gestured toward a girl and said 'Yeah, man, I hit that last night'."
Britney and Justin had a four-year relationship more than two decades ago (Getty Images)Britney wrote: "I don't want to say who he was talking about because she's actually very popular and she's married with kids now." She then added she wouldn't want the person to "feel bad" over the alleged situation if she'd named her.
The Grammy Award winner - who mentions a host of other celebrities in the memoir - further commented in the book: "My friend was shocked and believed Justin was only saying it because he was high and felt like bragging."
Britney Spears' memoir, The Woman in Me, published by Gallery Books, an imprint of Simon & Schuster, is available Oct. 24 wherever books are sold.