Maroon 5 frontman Adam Levine was reportedly "blindsided" when his Victoria's Secret model girlfriend Anne V ended their two-year relationship by press release.
According to Us Weekly, the Russian-born model told People magagazine, early this month that they had called time on their relationship, before, she had even told Levine that they were over.
A source closer to the Moves Like Jaggersinger told the Us magazine that even after the news of their split had broken he "wasn't even fully sure they were really broken up."
However a close friend of the model claimed that it was Levine's reluctancey to pop the question that caused their separation.
The source said "As a woman, you get to a point where you want to get married. Adam wasn't ready to take that step."
"It was a cheap shot... Anne didn't want it to look like he broke up with her"
Anne is not the only celebrity who has yet to master the art of proper dumping etiquette.
IBTimes UK has a look at other celebrities who have either taken the easy way out or opted for public humiliation when dumping their partners.