Discover amazing facts about some of the world's most popular songs
Despite serious relationships, actress Tomei has never been married. She once said, "I'm not that big a fan of marriage as an institution, and I don't know why women need to have children to be seen as complete human beings."
Actor Owen Wilson has dated but never married a number of famous women, including Kate Hudson, to whom he was reportedly engaged back in 2008.
Comedian Bill Maher has never got hitched. He has been quoted as saying, "I'm the last of my guy friends to have never gotten married, and their wives—they don't want them playing with me."
Actor Matthew Perry has dated a number of famous women, including Julia Roberts and Yasmine Bleeth, but he never married any of them.
Politician and author Ralph Nader has never married. He once said that he had chosen to dedicate his life to his career rather than having a family.
Actress and writer Mary-Louise Parker is a mom of two. She had a seven-year relationship with actor Billy Crudup from 1996 to 2003, but she has never been married.
Musician Chris Isaak, who is best known for writing the hit song 'Wicked Game,' has never been married. Sources suggest he doesn't regret dedicating his life to his career.
Sources: (Ranker) (Harpers Bazaar) (Hello!)
Diane Keaton has dated a number of famous men, including Al Pacino, Woody Allen, and Warren Beatty, but she never married any of them.
Actress Dana Delany has never been married, although she has expressed interest in it. In 2006, for example, she said, "I turned 50 and I'm ready to get married..."
The 'Soak Up the Sun' singer began dating cyclist Lance Armstrong in 2003 and in 2005 they were engaged to be married. It never went ahead, however, and they separated in 2006.
He said of their relationship at the time, "We may not have a piece of paper that says we're husband and wife, but after 10 years, Jennifer is more than just a girlfriend. What we have is much deeper and we both know that."
'Mad Men' actor Jon Hamm dated his ex-partner Jennifer Westfeldt for many years, but they never got married. They have been separated since 2015.
He has, however, dated a number of famous women, including Diane Keaton and Beverly D'Angelo, with whom he has two (now adult) children.
British actor and comedian Ricky Gervais has been with his partner Jane Fallon for almost 40 years, but the two have never tied the knot.
Singer-songwriter Sheryl Crow has been involved romantically with some of the most famous people in the entertainment industry. During the 1990s she dated Eric Clapton and Owen Wilson.
Prolific actor Al Pacino, who is most commonly associated with his role as Michael Corleone in Francis Ford Coppola's 'The Godfather' (1972), has never been married.
Speaking of their decision not to marry Gervais has said, "There's no point in us having an actual ceremony before the eyes of God because there is no God."
She dated 'Good Will Hunting' (1997) actor Matt Damon for a while and she was engaged to Johnny Depp in 1990. She has been with her current partner, Scott Mackinlay, since 2011.
Actress Winona Ryder, who starred in the Netflix original 'Stranger Things,' has never been married, although she has dated some high-profile celebrities.
Australian pop icon Kylie Minogue has been linked romantically with a number of famous faces, but she has never been married. She was first associated with her current partner, Paul Solomons, in 2018.
Actor and screenwriter Seth MacFarlane, who is best known as the creator of 'Family Guy,' has never been married. He did date British actress Emilia Clarke for a while.
Actress Lauren Graham, who is best known for her work on 'Gilmore Girls,' has been with her partner, Peter Krause, since 2010, but the two are not married.
In a 2004 interview, MacFarlane noted his similarities with 'Family Guy' character, Brian. He said, "I have some Brian type issues from time to time—looking for the right person—but I date as much as the next guy."
According to 'Hello!' the 'Spinning Around' singer was previously engaged to actor Joshua Sasse, but it fell through. She has said before that marriage is not for her.
Actor John Cusack, whose films include 'Being John Malkovich' (1999) and 'Hot Tub Time Machine' (2010), generally keeps his relationships out of the spotlight and has never married.
Sources suggest that he has been involved with the likes of Neve Campbell and Minnie Driver. When asked in 2009 why he had never married, he answered, "Society doesn't tell me what to do."
They were actually engaged to be married in November 1992, but in the end the ceremony never went ahead. The reason for this still remains unknown.
TV personality Oprah Winfrey, once dubbed the 'Queen of all Media,' has been with her long-term partner, Stedman Graham, since 1986. However, the two have never been married.
Sources suggest that she previously dated a number of famous actors, including Tate Donovan and Matthew Perry, but she never married any of them.
Actor Tim Robbins, who is best known for appearing in 'The Shawshank Redemption' (1997), had a 20-year relationship with Susan Sarandon, but the two never married.
Although society has come a long way in reshaping the tradition of marriage, not getting married is still considered unusual, particularly for couples who are together on a long-term basis. There is still a sense that unmarried people must be missing out somehow.
The reality is, of course, that it's perfectly possible to have a happy and fulfilling life without ever getting hitched. And in fact there are many celebs who do just that.
Check out this gallery to find out which celebs have never been married.
Celebs who have never been married
These stars have never tied the knot
CELEBRITY Wedding
Although society has come a long way in reshaping the tradition of marriage, not getting married is still considered unusual, particularly for couples who are together on a long-term basis. There is still a sense that unmarried people must be missing out somehow.
The reality is, of course, that it's perfectly possible to have a happy and fulfilling life without ever getting hitched. And in fact there are many celebs who do just that.
Check out this gallery to find out which celebs have never been married.