Rock Bands With No Original Members
The thread about bands with non-original members who have served longer than the original members got me to thinking about bands still active with zero original members.
Three immediately come to mind:
Lynyrd Skynyrd (with the recent passing of Gary Rossington)
Riot
Molly Hatchet (with the entire lineup from the first album now deceased)
There's probably more, but those are the only ones I can think of off hand.
Any others?