Jay Z, Beyonce Knowles
Jay Z and Beyonce Knowles arrive at the Metropolitan Museum of Art Costume Institute Gala Benefit celebrating the opening of "Charles James: Beyond Fashion" in New YorkReuters

Celebrity couple – Beyonce Knowles and Jay Z – has been attending events in arms despite rumors that their marriage is in trouble, but it may not turn out to be the same if latest reports have anything to go by. It is rumored that the "Beautiful Liar" singer might be cheating on her husband with her statuesque bodyguard, Julius De Boer.

The 32-year-old singer is said to be very to close to her bodyguard, Julius De Boer, a Dutch native who has been protecting her at big events since 2009. Report has it that Jay Z is suspicious of their relationship.

"Jay definitely thinks that there was and may still be something romantic going on between Bey and Julius," a source told Mstarz News. "He wanted to fire Julius last February, but Beyoncé said, 'Julius isn't going anywhere.'

"They've spent a lot of time together behind closed doors," the source added. "He's even stayed in her hotel room." 

Jay Z also has his share of cheating rumor with the reports of his alleged relationship with British singer, Rita Ora haunting him ever since he signed her to his Roc Nation label in 2009. They were seen together even at the rapper's Made in America music festival in 2012.

However, Ora put an end to the rumors once and for all in a recent radio interview with Power 105.1's "The Breakfast Club." She hit back at the hosts of the show when asked about her alleged affair with Jay Z, saying that one shouldn't dare to disrespect Knowles .

"Don't you dare disrespect Knowles like that ever again in your entire life," said Ora, (reported by Hollywood Life. "You should know better than that... that's just straight up disrespect. You can't even go there." 

Speculations of a possible divorce have been doing rounds for quite a while now, but Knowles and Jay Z keep on dismissing any such development. However, the recent "elevator fight" between Jay Z and his sister-in-law Solange has sparked off murmurs if all is not well in the family with many questioning Knowles' indifferent attitude during the ugly incident.

Knowles has even removed her ring finger tattoo - "IV" - which depicted her relationship with Jay Z, who was born on 4 December. Their wedding was also on 4 April, reported Radar Online, adding that only traces of it is left after undergoing treatment to get it removed. 

"To the public, Knowles and Jay Z appear to have it all. But behind close doors, they're not as happy as people think they are," a source close to the couple told Radar Online.

"Jay's been telling his friends that Knowles is getting her ring tattoo removed, the one they got when they were married. He just sorta shrugs it off though saying 'Nothing is forever.'"

Knowles and Jay Z tied the knot in 2008 after dating for six years and have been going strong all these years despite rumors of their separation.