11 Celebs Who Kissed & Dissed

From Selena Gomez's tear-jerking confession to Justin Timberlake's revealing chart-topper, see who had some not-so-nice things to say (and sing!) about their exes

SEAL

The Ex: Heidi Klum
Months after announcing her separation from Seal in January 2012, Klum moved on with bodyguard Martin Kirsten – and Seal moved his mouth to TMZ. "I would have thought that Heidi would have shown a little more class and at least waited until we separated first before deciding to fornicate with the help," he said. Klum fired back in a statement to PEOPLE, "Our separation was based on issues between the two of us."