Reo Speedwagon

Former Whitesnake, Foreigner and Rick Springfield keyboardist Derek Hilland helps band "survive a major personnel change."

New dates come shortly after founding keyboardist Neal Doughty announced his retirement from touring.

The co-founding keyboardist was the band's last original member.

Frontman is also prepping a memoir about his life with the band.

Trek runs from May through August, with Loverboy as special guest.