Tallulah Willis Celebrates at Debutante Ball Without Mother Demi Moore

Tallulah Willis, the daughter of actors Bruce Willis and Demi Moore, has become a member of high society living when she entered the annual Le Bal des Débutantes at the Hotel de Crillon in Paris Saturday.

The 17-year-old celebrated the occasion with her father Bruce and sisters Rumer and Scout – with Scout doing the same in 2009.

Demi was not at the ball most likely due to her divorce proceedings with Ashton Kutcher.

"He was a little different than three years ago [when Scout was a debutante], more reserved," a source who attended the party told People. "He was there for his daughter, but protective. It wasn't until around midnight when he danced with Tallulah that you saw him become more relaxed."

The fathers all danced the waltz with their daughters as part of the tradition of the ceremony. Actress Andie MacDowell and her daughter Margaret Qualley were present, along with Duran Duran bass player John Taylor and his daughter.

MacDowell told AFP she started in Paris as a model before moving on to acting. She said, "Everything starts here, fashion-wise. I fit in better in Paris -- they didn't know what to do with me in New York."

Tallulah was the youngest member of the Willis children until her father announced that he and his second wife, Emma Heming Willis, are expecting a baby early next year.

The custom of the debutante dates back to royalty in France and England. It is usually reserved for daughters of elite actors, aristocrats, and successful business leaders.

The girls were to then be presented to the Queen on their 18th birthday's but that tradition has long past as the modern version of the ball started in 1957. However, it was stopped in 1968 due to a student uprising.

The ball became a charity event 20 years ago and this year's proceeds will go to the "Feed Foundation of Lauren Bush."