On Riverbend's second-to-last night, the Goo Goo Dolls' headlining performance was not the only reason it felt like the clock had been turned back at the riverfront. Plenty of other bands were already playing off nostalgia before the Buffalo, N.Y.-based adult alternative trio took the Coke Stage to perform signature '90s-era power ballads such as "Iris" and "Black Balloon." The Bud Light Stage kicked off at 6:15 with an all '90s-themed show by The Communicators, a local supergroup that made its debut last Halloween at Track 29 by covering The Beastie Boys seminal "Ill Com