Pamela Anderson & Tommy Lee

The Playboy Playmate and the well-endowed rocker have had a very rocky relationship. Married in 1995 and divorced in 1998, the couple had two sons and still remained close. They moved back in together in 2004 but broke up again shortly after. In 2008, they tried to rekindle their romance but that attempt failed too. Maybe they should just remain parents and friends!