Watch the Trailer for CBS' Holiday Film 'When Christmas Was Young' (Exclusive)

The original holiday movie premieres Sunday, Dec. 18 at 8 p.m. ET/PT on CBS. Sheryl Crow executive produces and writes the title song for 'When Christmas Was Young,' a Nashville music-themed movie from a script by screenwriter/novelist Robert Tate Miller. The story follows a headstrong music manager (Tyler Hilton) in desperate need of a hit song for his last remaining client, who finds himself falling for a gifted singer-songwriter (Karen David) with abandoned dreams of making it big, as he attempts to secure the rights to a Christmas song she wrote years ago.