The unauthenticated biography of Beyonce called 'Becoming Beyonce: The Untold Story', states that the "Single Ladies (Put a Ring on It)" singer split with Jay Z in 2005 after five years of dating.

This was around the time when Rihanna (then 17-year-old girl) was signed by Jay Z and released her first single "Pon de Replay."

J Randy Taraborrelli, the author of the book, told Entertainment back then in 2005 that Beyonce's disappointment in her husband about the whole story with the Rihanna situation led to a split.

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

Just a reminder, Beyonce and Jay Z started dating in 2000 after she appeared on he's protégé Amil's "I Got That" song. Two years later, they had their first musical collaboration with Bonnie & Clyde.

Tamborrelli also gave his side of the story behind the notorious elevator row between Beyonce's sister Solange and Jay Z.

He was collecting information from several people who claimed to be eyewitnesses when Beyonce told Jay Z he could not attend Rihanna's Met Gala after-party. People told him that they have heard some argument that had something to do with Jay wanting to go to a Rihanna's party.

"Beyoncé did what Beyoncé does. She laid down the law . . . it was a whispered married couple's argument that would've gone by completely unnoticed had not Solange overheard it," he said.

However, he stated that he thinks that only people that know for sure what happened that night are the ones who were in the elevator: Beyonce, her sister Solange, Jay Z and the bodyguard.

Jay Z and Beyonce tied the knot in April 2008 and have a beautiful daughter together. Blue Ivy Carter was born in January 2012.

Is it safe to say that Beyonce and Rihanna are friends?