Jennifer Hudson is reportedly feuding with ex-friend and rapper Lord Kraven. According to Radar Online, Hudson caused a scene backstage at the People's Choice Awards and demanded that security kick the rapper out of his front row seat.

"Jennifer loudly threatened 'Either he leaves or I leave,' and was waving her finger in the face of a security guard," a source told Radar.

Security did kick Kraven out of his seat but "the situation continued to escalate outside the main auditorium." The source told Radar that LAPD was eventually called to the scene and felt that Nokia Theatre security had "acted in haste and offered to escort [Kraven] back inside."

Hudson attended the event, where she was honored for the Favorite Humanitarian Awards, with her sister, Julia and fiancé David Otunga.

The source told Radar that the "Spotlight" singer and Kraven had a falling out after he gave an interview on HLN's Showbiz Tonight in April 2012, at the same time as the trial for the murder of her mother, brother and nephew (check out the interview below).

"Before then Jennifer and Lord Kraven were close, but ever since then she has declared war against him," the source said.

The rapper took to Facebook to lash out at Hudson and scold her for her behavior at the Awards show.

"OMG! I can't believe THIS! JENNIFER HUDSON, look what YOU HAVE CREATED! This is absolutely ridiculous! I am #Speechless!! This headline is everywhere!! Ugh! #TimeToGROWUP #TIMEtoBEMATURE #TimeToGeyOverYourself," he posted.

"I guess this what Jennifer Hudson is upset about??" he continued including a link to the HLN video. "What did I say or do wrong? I simply offered my deepest regret and sympathy for her loss and applauded her for being a woman of such remarkable strength and dignity, during her time of bereavement... What is your beef Jennifer Hudson?"