Some of country music's most beloved stars have joined their fellow celebrities from the world of entertainment in recording a new version of the Beatles classic 'Hey Jude' to help raise money for St. Jude Children's Research Hospital.

A new clip released online shows Alabama front man Randy Owen, Keith Urban, Lady Antebellum, Big and Rich and Darius Rucker all contributing lines to the new track, which is encouraging fans to donate money to help fight childhood disease. The verses culminate with comic actor Robin Williams delivering the song's climactic scream before the children of St. Jude and members of the staff are joined for the chorus by a host of stars from TV and film, including Betty White, Jimmy Kimmel, Ellen DeGeneres and Marlo Thomas, whose father Danny Thomas founded St. Jude.

Thomas's son Tony Thomas produced the 'Hey St. Jude' video, which was created to highlight September as National Childhood Cancer Awareness Month.

St. Jude is one of the most important children's charities in the world, providing free treatment to children suffering from catastrophic disease and leading the scientific world in research into cures and prevention. For a donation of $35, you can not only support the needs of sick children, you will also receive a t-shirt like the one in the 'Hey Jude' clip. For more information, visit this link.

Watch the 'Hey Jude' Video Clip