The rapper wanted to meet Rihanna that night which irked Solange Knowles and she attacked him in the lift, reported the Daily Mirror.
Following lift-gate, Beyonce and her rapper hubby Jay Z were faced with infidelity rumours.
"Business is always part of the equation. They know they're the king and queen of hip-hop and really, all of music. Neither wants to lose that," the source said.
Jay Z and Beyonce got married in 2008 and over the past decade, has become one of the most iconic couples in the music industry.