13. Amanda Bynes and Seth McFarlane
This one is just… weird. But yes, Amanda Bynes, of What I Like About You fame, briefly dated Family Guy creator and all-round funnyman Seth McFarlane. Who knew?
12. Ashton Kutcher and Rihanna
This is another odd (but highly attractive) pairing – actor Ashton Kutcher and pop star Rihanna. Back in 2012, Rihanna was spotted paying a visit to Kutcher’s house. It appears to have been a one-night thing, and Kutcher is now happily married to Mila Kunis. While Rihanna… well, she’s busy being Rihanna.