Procol Harum

Many of the genre's biggest names are still awaiting their induction.

With huge hits, multi-platinum albums and lasting legacies, these '60s artists certainly seem Hall-worthy.

Late Procol Harum leader will be honored at star-studded December show in Guildford, England.

He contributed to almost all of the band's song, including the classic hit "A Whiter Shade of Pale."