On the 2012 album Fly, you're hearing the peak of the band's "Classic Era" eight-piece lineup.

Adam Deitch: Drums and percussion.
Eric Krasno: Guitar.
Adam “Shmeeans” Smirnoff: Guitar.
Erick “Jesus” Coomes: Bass.
Neal Evans: Hammond B-3 organ, clavinet, and keyboards.
Ryan Zoidis: Alto, tenor, and baritone saxophones.
Rashawn Ross: Trumpet. />Sam Kininger: Alto saxophone.

Nigel Hall: Vocals on the track "Do It Like You Do". (This was several years before he officially joined as a full-time member).

This album is famous for its crisp production and the track “Madison Square,” which became a staple for their live shows. It was recorded at Soulive's studio, The Bunker, and reflects the band's deep connection to the Velour music scene in New York.