The Dells

The Dells were one of the finest and longest-lived R&B vocal groups in history, and what's most amazing is that they did it with nearly all the same members. They were one of the very few doo wop outfits to successfully update their sound, finding their strongest commercial niche in the late '60s and '70s as a polished smooth soul harmony group. While their chart fortunes certainly fluctuated over the years, they remained a viable act right up into the '90s, by which time they had long since achieved legendary status in the R&B community.