The iconic TV show Friends, which aired from 1994 to 2004, has become one of the most popular comedy series of all time.

Here are 10 trivia facts about the show that you may not know: 1. Friends wasn't originally called Friends: The show had various working titles, such as Friends Like Us, Six of One, and Insomnia Cafe before settling on Friends.

2. Jennifer Aniston was not a fan of 'the Rachel' hairstyle: Despite the popularity of her character's hairstyle, Aniston revealed that she did not like it and found it hard to maintain.

3. Central Perk's sofa wasn't originally orange: The iconic orange sofa featured in the coffee shop was supposed to be beige, but the creators settled for the vibrant color instead.

4. Filming was never in New York: Despite being set in New York City, Friends was actually filmed in Los Angeles, with only the exterior shots of the apartment building being filmed in New York.

5. Ellen DeGeneres could have been in Friends: DeGeneres was originally offered the role of Phoebe but turned it down.

Other celebrities, such as Kathy Griffin and Jane Lynch, also auditioned.

6. Ross was 29 for three years: Ross mentions his age as 29 in seasons three and four, but in the fifth season, he mentions getting divorced twice before the age of 30. There are also inconsistencies with his birthday.

7. Marcel was played by two monkeys: Ross's pet monkey Marcel was played by two capuchin monkeys named Katie and Monkey.

David Schwimmer, who played Ross, was not allowed to bond with them.

8. Phoebe's pregnancy was real: When Phoebe was pregnant with triplets on the show, Lisa Kudrow was actually pregnant in real life, so they incorporated her pregnancy into the storyline. 9. Jennifer Aniston intended to leave Friends during season one: Aniston was also on another sitcom called Muddling Through at the time and considered leaving Friends if Muddling Through got picked up.

10. Bruce Willis didn't get paid for his role: Bruce Willis appeared in three episodes of Friends and made a bet with Matthew Perry, who co-starred with him in a movie. If the movie became number one at the box office, Willis would appear on Friends for free. He won an Emmy for his guest role.