Legendary actor Dame Julie Andrews turned 90 today. Andrews rose to fame in the London theater scene in the ’50s and ’60s for her performances in West End productions such as My Fair Lady and Cinderella. She landed the titular role in Walt Disney’s 1964 smash hit Mary Poppins, for which she won an Academy Award. Andrews went on to star in some of the most iconic musical films of the era, including The Sound of Music, My Fair Lady, and Thoroughly Modern Millie.

While her career highlights certainly don’t stop at musicals — in fact, Gen Z may only know her as the voice of Lady Whistledown on Bridgerton — Andrews’s voice, charm, and poise have made her a delight to watch in everything from Alfred Hitchcock’s Torn Curtain to the millennial girlie-pop touchstone The Princess Diaries. If you want to celebrate Andrews’s birthday in style — with a few muppets to aid your enjoyment — we’ve got you covered.

The Netflix show Julie’s Greenroom stars Andrews and is co-produced by The Jim Henson Company. The educational children’s show features the Greenies — adorable puppets staging their very first musical under the watchful eye of their mentor, Andrews herself. Each week a new guest stops by to teach the Greenies valuable lessons about music, acting, dance, performance, and even life. Special guest stars include Sara Bareilles, Alec Baldwin, Ellie Kemper, Tituss Burgess, Chris Colfer, Josh Groban, and Wicked the musical’s Idina Menzel (in a very special The Wizard of Oz–themed episode called “The Show Must Go On.”)

Movie Musicals That Will Make You SingFrom Matilda to Tick..Tick...Boom!, sing along to these show-stopping musicals.