Uh oh, it seems another A-List couple have called it quits, with reports claiming that Charlize Theron has ended her engagement to actor, Sean Penn.

According to Us Weekly, it was the 'Mad Max: Fury Road' actress who decided to put a stop to their year-and-a-half romance after spending time with Penn in Europe last month.

The insider claimed that after attending the 'Cannes Film Festival 'together, the 39-year old ended things with the Oscar winner, despite plans to marry later this year.

She later attended the 'Critics’ Choice Awards' on May 31 alone, with People magazine recently reporting that the couple were not living under the same roof.

Reps for both Theron and 54-year old Penn are yet to comment on the speculation, with Charlize now throwing herself into work on set of her new movie 'The Huntsman' in London.

We’re sure co-star Chris Hemsworth could help anyone with the break-up blues…