Gregg Rolie

Two-time Rock & Roll Hall of Fame inductee also built the foundation for Santana.

Toto's Steve Lukather also joined them for a cover of "Black Magic Woman."

Prospect of shows with band's original keyboardist discussed as feud with Jonathan Cain intensifies.

Rolie's return is being met with some resistance.

Neal Schon first teased the possibility in late November.

Their most overlooked album provided a fitting, though little-heard, swan song for co-founding keyboardist.

Steve Perry is obviously No. 1. But the runner-up might surprise longtime fans.