Beatles classics like Hey Jude live on and on! And this time the famous song is sung for a good cause, with many Hollywood stars singing along with the young patients and doctors of St. Jude Children’s Research Hospital.

A long list of celebrities, including Mad Men‘s Jon Hamm, Malin Akerman, Betty White, Keith Urban, Jennifer Aniston, Dr. Oz, Jordin Sparks, Jimmy Kimmel and many more, cover the iconic song to help make a difference for children everywhere.

You can use the hash tag #HeyStJude on Twitter to join the movement!