Prior to Mayer, Simpson was married to fellow pop singer Nick Lachey. After wedding in 2002, they became a pop culture fixture thanks to "Newlyweds," the MTV reality show that chronicled the first two years of their union. But fame seemed to put stress on their relationship, and in December 2005, Simpson filed for divorce citing irreconcilable differences.
Most recently, Simpson has been linked to an unlikely beau -- Billy Corgan, the 42-year-old frontman of the alternative rock band The Smashing Pumpkins. While neither have confirmed relationship rumors, Corgan told The Chicago Tribune last month that he helped her write the theme song of "The Price of Beauty."
In January, Simpson tweeted about Corgan, saying "He braids my prayers."