Lukas Graham's "4 (The Pink Album)" features guest appearances by G-Eazy, Mickey Guyton, and Khalid.

Singer-songwriter and guitarist David Crosby has died at the age of 81. Hear his work with Crosby, Stills & Nash, the Byrds, and beyond on Classic Rock.

Influential guitarist Jeff Beck has died at the age of 78. Hear his work with the Yardbirds (and beyond) on '60s Hits.

Here's who to keep your eye on this year...you heard them here first!