Mariah Carey's disappointing performance can be reportedly blamed to her divorce proceedings, as the singing diva has yet to issue a statement about her Christmas tree lighting gig at the Rockerfeller Center in New York.

According to a new report from TMZ, the mother of twins was embroiled in the divorce proceedings meeting with her lawyers on Tuesday evening that it affected her performance.

On Tuesday night, Mariah Carey was supposed to be taping for the live show to be aired on Wednesday night. After three hours, and while fans braved the cold as they waited for her to appear, she still didn't arrive.

"People connected to the hotel tell us ... Mariah was ensconced in her East Side hotel, yacking with her lawyer on the phone about her divorce. People who overheard her say it did not seem nasty ... she was going over the property settlement," the website said.

The report added that Mariah Carey's performance was definitely affected since even if she arrived at the Rockerfeller Center, "she was still on the phone and people overheard her continuing to talk divorce."

"NBC execs were full on enraged -- ditto the crew -- and Mariah's people were told to just go home. We're told she really wanted to perform, but the network had clearly had enough," TMZ added. "We're told Mariah was upset because she didn't want to disappoint her fans or the network."

This confirmed the previous report from People Magazine, which also alleged that she was talking to her lawyers for five hours straight regarding her divorce with Nick Cannon, and the ensuing property claims and custody battle.

"She's trying to keep it together. She's focused on caring for her children and her upcoming five sold-out Christmas engagements in New York," the source said of Mariah Carey's disappointing performance at the Rockerfeller Center.