Lady Gaga fans weren't the only ones upset with Leonardo DiCaprio for allegedly dissing the singer-turned-actress during Sunday's 73rd annual Golden Globe Awards. "The Revenant" actor was caught on camera giggling and giving Gaga the side eye after she bumped into him as she walked to the stage and accepted her award for best actress in a miniseries or motion picture for TV. 

Following the award show, DiCaprio was reportedly confronted by Gaga's fiancée Taylor Kinney, according to Radar Online. Kinney felt like DiCaprio was being rude and asked him to apologize to his soon-to-be wife.

"Taylor was not going to let anyone make fun of his future wife, even if they are an A-list actor," a source told Radar Online in an exclusive report Monday. "It was her moment to shine and she worked very hard for that award."

"He basically told him in a non-confrontational sort of way that he should apologize to her because it was flat out rude and extremely unprofessional," the source added.

The source claimed that before the show started, DiCaprio was bad mouthing the "American Horror Story" actress because he did not "think that she deserved to be nominated." In order to make a statement, Gaga purposely pushed into DiCaprio's arm on her way to the stage.

"It got back to her obviously," the source said. "She would have ignored it, but when her name was announced as the winner, Leo was laughing so loud that people far away from his table heard it. He was making a total scene... GaGa was not about to let him steal her moment and she wanted to shut him up."

Despite rumors of bad blood between GaGa and DiCaprio, an eyewitness claims that the two were actually having a great time as they celebrated their wins at the Creative Artist Agency's Golden Globes after party in West Hollywood, according to Us Weekly. DiCaprio was shocked that his reaction went viral but thought it was humorous, and so did Gaga and Kinney.

"They hung out for twenty minutes laughing and chatting and Leo explained that he had no idea she was even behind him when she walked up," the eyewitness explained. "He was having a moment laughing with who he was sitting with about something else and then his elbow was out and he had no idea she was walking by - it's so crowded in that room." 

DiCaprio told Entertainment Tonight that he had no idea that his reaction was trending, saying, "I just didn't know what was passing me - that's all!"