According to the Allman Brothers Band and Derrick Trucks mailing lists,
Blues Traveler frontman John Popper will be singing (and, presumably, playing
harmonica) for a band called Frogwings. This band, which is essentially a
side project for musicians in other bands, consists of Butch Trucks, Marc
Quinones, Otiel Burbridge, Jimmy Herring, Derek Trucks, Kofi Burbridge, and
Frogwings will be rehearsing in January in preparation for some northeast
dates in February. More news will follow when everything is set in stone.