Brad Pitt's ex-wife Jennifer Aniston is reportedly jealous and upset over her fiancé Justin Theroux's closeness with Liv Tyler on and off the "Leftovers" set.

Rumor has it that Aniston was specifically distraught when Theroux and Tyler attended Aerosmith's concert.

"Jennifer was jealous that Justin got to go see Aerosmith in concert," said the site's source. "She wanted to have been invited too but wasn't even around."

An alleged insider even claimed that Brad Pitt's controversial ex-wife Jennifer Aniston immediately called Theroux and fought about it, as reported by CelebrityFix.

The gossip site added that Tyler and Therous were in "in deep conversation backstage for 45-minutes."

Theroux was said to be upset about his fiancée's reaction, "Liv was being a great listener and Justin was really upset. He said he called Jen a dozen times but she wasn't picking up his call," a source revealed.

The insider even added, "He took a selfie with Steven to send to Jen hoping to make it up to her."

Liv Tyler even shared a photo of her and Theroux showing their closeness in Instagram. They were strangely blowing bubble gums in front of each other.

It seems that Brad Pitt's ex-wife Jennifer Aniston is having some déjà vu that she immediately flew to New York to join Theroux during the "Leftovers" red carpet premiere.

It's been known that Jennifer Aniston and Justin Theroux seldom attend formal events together the last one was way back September last year where the couple attended the cocktail party for Pandora Jewellry.

Could it be that Jennifer Aniston is actually threatened by Theroux's "Leftovers" co-star Liv Tyler?

What about you Kpopstarz readers, do you think Brad Pitt's ex-wife Jennifer Aniston be jealos of Justin Theroux and Liv Tyler's friendship? Sound off in the comments section below.