"He's younger than me, so what?"
Demi was engaged to Emilio Estevez and has had two previous marriages. Her first husband was drummer Freddie Moore. They wed in 1980 and divorced in 1984. Then she married actor Bruce Willis in 1987; they divorced in 2000.
Scout, 14, and Tallulah, 11.
CAMERON DIAZ & JUSTIN TIMBERLAKE
Age difference: She's 32, he's 23.
Romantric history: The two have been dating for a couple of years, since Justin split up with pop diva Britney Spears and Cameron broke up with metal rocker Jared Leto.
MADONNA & GUY RITCHIE
Age difference: She's 44, he's 32.
How they met: At a dinner party given by pop star Sting and his wife Trudie Styler in 1998.
Where they live: London, Notting Hill.
Children: Guy and Madonna has a a son named Rocco. Madonna had a daughter, Lourdes Maria, with her personal trainer Carlos Leon.
Marital History: Madonna married Sean Penn in Malibu, California, in 1985. The marriage lasted four years. Then she had a romance with Carlos Leon. This is Ritchie's first marriage.
Guy says: His life with the pop diva is "just like anyone else's, except we don't go off to nine-to-five jobs.... Age is not an issue. I don't even think about it unless someone brings it up." The British film director was barely 16 when his future wife hit the charts.
JULIANNE MOORE & BART FREUNDLICH
Age difference: She's 44, he's 35.
Marital history: The twice-Oscar-nominated actress married her live-in partner, film director Bart, at a private wedding ceremony in 2003. The bride entered the room carrying their one-year-old daughter Liv, while the groom came in hand in hand with their five-year-old son Cal.