According to the site Ashleymadison.com, the celebrity most men in relationships would want to cheat with is none other than Katy Perry! The dating service that encourages affairs, polled 25,000 of their users to come up with the list.
Katy is tops, followed by her best friend/singer Rihanna! Rounding out the rest of the top 10 are: Mila Kunis, Salma Hayek, Jennifer Aniston, Scarlett Johansson, Sofia Vergara, Blake Lively, Kim Kardashian and Sarah Palin.