Special guests Paul McCartney and Grace Slick join Casey as he counts down the top 10 hits of the week.

Special guest Olivia Newton-John joins Casey as he counts down the top 10 hit songs of the week.

Special guest Frankie Valli joins Casey as he counts down the top 10 hit songs of the week.

Special guests The Grateful Dead join Casey as he counts down the top 10 hit songs of the week.

Casey counts down the top acts from the sixties.

Special guests Murray the 'K,' Doctor Demento, and Wolfman Jack join Casey as he counts down the top 10 hit songs of the week.

Casey counts down the top 10 hit songs of the week.