What key does Julie Andrews sing in?

Julie Andrews is known for her remarkable vocal range and ability to sing in various keys, depending on the song. Notably, in "The Sound of Music," she often sings in a key that showcases her soprano range, such as in "The Hills Are Alive" which is primarily in B major. Her performances in "Mary Poppins" also feature a mix of keys that highlight her unique vocal qualities. Overall, her singing spans a wide range, making her versatile in musical performances.