Demi Lovato and Jimmy Fallon performed a metal cover of the 'Barney' theme in 2008. The pop star had cited metal as one of her favorite genres.

Watch the extended theme song music video HERE The theme song for Barney’s World is a nod to the original tune viewers know and love, but with an updated melody and lyrics.

Harking back to her first on-screen job, Gomez wrapped things up with a sing-along of the “Barney & Friends” theme song. Up to that point, things had been relatively tame.

How ‘Barney & Friends’ and a Trip to Jamaica Led to the ‘Arthur’ Theme Song Creator Marc Brown and executive producer Carol Greenwald also explain why Ziggy Marley was their first choice ...