The hills are alive once more! Julie Andrews, Christopher Plummer and all of the actors who played the Von Trapp children are here for the first reunion in 45 years.

A one-time only event: The Sound of Music cast reunited on The Oprah Winfrey Show.

Read Chapter 25 of In Spite of Myself, a memoir by Christopher Plummer.

If you pride yourself on being the ultimate Sound of Music fan, test your knowledge with this quiz!

Find out what happened behind the scenes! Actress Kym Karath, who played the youngest Von Trapp child, Gretl, and the cast of The Sound of Music, explains why the rowboat scene in The Sound of Music was so scary for her to film.