Hollywood is never short of rumored celebrity feuds, especially when it comes to the music industry. The latest story surrounds pop star Lady Gaga and Beyonce after took a swipe at the ‘Born This Way’ singer for her dramatic entrance at this year’s Grammy Awards ceremony.

Lady Gaga arrived to the ceremony, being carried inside of a fashioned egg that was hoisted around by several men. When it came time for her to perform, the singer “hatched” from the egg to perform her latest single, ‘Born This Way.’

According to one source, Beyonce reportedly believes that performers should adhere to a sort-of code of conduct, and that Gaga’s red carpet arrival was pushing it above and beyond. Beyonce allegedly then referred to the pop star as an “egomaniac” who needs to “take it down a few pegs.”In defense, Gaga called Beyonce a “jealous hater.”