Josh Duhamel and Audra Mari (21 years)
Josh Duhamel is riding high as both the star of the Transformers movies, as well as snagging the singer Fergie as a wife, but even with his success, Josh felt it was time for a change, so after divorcing the Black Eyed Peas singer, the 49-year-old star hooked up with the 28 year old model Audra Mari, and after two short years, the couple became engaged. According to Duhamel, it’s about having more kids, and the speculation is that Fergie, at the age of 46, may not have been on board.