Actors Katie Holmes and Tom Cruise turned heads upon their 2005 engagement with a 16-year difference in age. They have since had a baby girl, Suri, and were married last November.
Hollywood legend Harrison Ford and TV star Calista Flockhart have been engaged since 2002. The 65-year-old actor and 42-year-old actress have yet to tie the knot.
Michael Douglas and wife Catherine Zeta-Jones coincidentally share the same birthday, 25 years apart. The two met at a film festival in 1998, were engaged New Year's Eve 1999 and married in November 2000. They have since had two children.
"Desperate Housewives" star Eva Longoria and San Antonio Spurs star Tony Parker, seen at this year's NBA Finals, married in Paris in July. The 32-year-old actress and 25-year-old basketball star had been engaged since November 2006.
Singer Rod Stewart, 62, and model Penny Lancaster, 36, married this past June on his yacht in Portofino, Italy. The couple had been engaged since March 2005, but had to wait for Stewart's divorce to ex-wife Rachel Hunter, 37, to finalize before tying the knot.
Jerry Seinfeld, 53, met his wife Jessica, 35, a few weeks after her first marriage in 1998. A year later, the two were wed, and have had three children.
Model Adrianne Curry and actor Christopher Knight were wed in May 2006 after a highly-televised courtship. The couple met on the fourth season of VH1's "The Surreal Life," and despite their 25-year difference in age, fell in love.
Four-time Oscar nominee Julianne Moore is nine years older than her husband, Bart Freundlich. The two married in August 2003 and have two children.
Singer Celine Dion met her manager/husband Rene Angelil when she was 12 and he was 38. They wed in 1994, when she was 26, and have since had a son.
Actress Geena Davis is 15 years older than her husband, Dr. Reza Jarrahy. The couple married in 2001; they have three children, including twins.
Oscar-winning actor Nicholas Cage met his wife, Alice Kim, when she was a waitress at a sushi bar. At the time, she was 20 and he was 40. They wed in 2004, soon after Cage's divorce from his previous wife, Lisa Marie Presley, was finalized.
Madonna and her husband, filmmaker Guy Ritchie, were introduced by Sting and his wife. Although she is a decade his senior, the couple married in December 2000.
Katie Lee Joel, wife of singer Billy Joel, is 32 years younger than her famous husband. She and the "Piano Man" tied the knot in October 2004.
"Dynasty" star Joan Collins met Percy Gibson, her fifth husband, when she was 68 and he was 36. They met while Collins was touring the United States for the play "Love Letters."
Paul McCartney was a few days shy of his 60th birthday when he married 34-year-old former model Heather Mills in 2002. The couple filed for divorce in May of last year.
Movie stars Liam Neeson, 55, and Natasha Richardson, 44, first worked together in a 1984 TV mini-series, followed by the Broadway play "Aunt Christie" and the film "Nell" over the following decade. It's no surprise then that the two married in 1994.
Oscar-winning actors Tim Robbins and Susan Sarandon have been an item since they co-starred in 1988's "Bull Durham." While Sarandon is 12 years Robbins' senior and the couple has two children, they have yet to get married.
Donald Trump and his wife Melania have been married since January 2005, and blessed with a baby boy that September. The Donald is almost 24 years her senior.
Demi Moore and Ashton Kutcher have been one of Hollywood's hottest couples since they started going out. Moore is 15 years older than Kutcher; the two were married in September 2005.
One of the most interesting couples in Hollywood's recent history has been Woody Allen and Soon-Yi Previn. Not only is Previn the adopted daughter of Mia Farrow, Allen's former lover, but she is almost 35 years younger than her famous director-husband. The two have been married for a decade this December; they have two children.