12/03/2012 07:48 pm ET

Robin Givens, Brad Pitt And 6 Other Shocking Post-Divorce Rebound Relationships

From Katy Perry dating John Mayer, to J.Lo finding love with backup dancer Casper Smart, celebrities are constantly surprising us with their choices in rebound relationships after divorce.

Mike Tyson can relate. In a recent interview with Yahoo! Sports, the 46-year-old boxer opened up about unexpectedly walking in on his former wife, Robin Givens, in bed with Brad Pitt, whom she was dating in the midst of her 1988 divorce from Tyson.

"I was getting a divorce," Tyson explained, "I was going to my lawyer's office to divorce her that day but I wanted to sneak in a quickie [with Givens]... This particular day, someone beat me to the punch."

Click through the slideshow below to read more about Givens' rebound relationship with Pitt, and for six other post-split pair-ups that left us scratching our heads.

Most Surprising Post-Divorce Rebounds