A new tell-all book claims that super couple Beyonce and Jay Z separated for a year around 2005 due to an affair with Rihanna.

The explosive book by J Randy Taraborrelli, entitled Becoming Beyoncé: The Untold Story, alleges that the split happened around the time Jay Z began mentoring the then-17-year-old. The rapper managed the launch of her debut single "Pon De Replay," which came out in 2005. 

Many said the rumors were just intended to boost Riri's profile, however, Beyonce may not have thought it was just rumors. The writer claims, "Beyoncé didn't know what to make of this, and it actually ended up breaking them up for a time."

'They spent maybe a year apart from each other because Beyoncé just wasn't sure of what to make of the situation with Rihanna."

But that rocky past seems to be behind them these days. Taraborelli added: "It's safe to say that Rihanna and Beyoncé are friends."

So we guess that's all water under the bridge?