The Bee Gees made whiney falsetto hip, wide polyester collars the height of high-rolling fashion, and defined cool for an entire generation. A '70s supergroup who actually began as a brothers act in 1959, the Bee Gees have proven remarkably versatile throughout their long career, unafraid to experiment with everything from country to R&B to straight pop balladry. They scored a number of hits during the 1960s and early '70s with shimmering hits like "I've Got to Get a Message to You" and "How Can You Mend a Broken Heart." Some of the Bee Gees' most memorable tracks stemmed from the height of the disco era, culminating in 1977's Saturday Night Fever soundtrack with tunes like "Night Fever," "How Deep is Your Love," and of course, "Stayin' Alive." Lush harmonies, symphonic arrangements, and a tendency to reinvent themselves when the going gets tough have made this band one of the longest-running pop acts around.