It didn't go down well with queen Bey and she split from Jay-z whom she had been dating since 2001. The astonishing claim comes in a new unauthorized biography by best-selling writer J Randy Taraborrelli titled Becoming Beyoncé: The Untold Story.
Describing the alleged split, he said: '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 he adds: 'It's safe to say that Rihanna and Beyonce are friends.'
According to Taraborrelli's theory, the split would have been around 2005, when Pon De Replay was released. At that time Jay Z was 35, Beyoncé 24, and Rihanna 17.
He also addressed the notorious spat of May 2014, when Beyoncé's sister Solange was caught on surveillance camera lashing out at Jay Z in the elevator of New York's Standard Hotel after the Met Gala.
After a surveillance video of the incident made it's way on the internet without audio, many wondered what caused Beyoncé's 29-year-old sister to violently attack the Jay-z. The author spoke to several individuals who are close to Beyoncé, and claimed he has heard from eyewitnesses that the Drunk In Love singer told Jay he could not attend Rihanna's after party at the Met Gala.
The author added: 'I think it's safe to say the only people who know for sure what happened are Bey, Jay, Solange and the bodyguard who were in the elevator.'
The author also alleges that Beyoncé has anyone looking after her three-year-old daughter Blue Ivy must sign a contract titled 'Daily Program for Blue Ivy as Per Mrs. Carter.'
Taraborrelli explained: 'If you are a nanny coming into her household, and you think you are going to just raise Blue Ivy the way you want to, that's not gonna happen.
'Beyoncé has sort of an agreement, a structure of how she wants her child to be raised and you have to adhere to this.'
The Single Ladies hitmaker has allegedly only had two boyfriends in her life, Jay Z and Lyndell Locke, who she was in a nine year relationship with.