Alyssa Milano, Chrissy Metz, Milo Ventimiglia, Ian Harding, the stars of "Fuller House" and "Dynasty" and J.K. Simmons share their favorite holiday songs. See who sang -- and who refused to play along!
Alyssa Milano, Chrissy Metz, Milo Ventimiglia, Ian Harding, the stars of "Fuller House" and "Dynasty" and J.K. Simmons share their favorite holiday songs. See who sang -- and who refused to play along!
