On September 30, Bon Iver will release a new album called 22, A Million. They were the musical guests on last night’s episode of “The Tonight Show Starring Jimmy Fallon,” where they performed “8 (circle),” a new track from the album. Justin Vernon was accompanied by a chorus featuring the Staves, Gordi, Anaïs Mitchell, and Arone Dyer (of Buke and Gase). “I got a thousand questions—I don’t know how you do it,” Fallon said after the performance. Watch the performance below.

Read “What's Justin Vernon Been Up to Since the Last Bon Iver Album? A Lot” on the Pitch, Pitchfork’s live blog of the first 22, A Million performance, and a report from the band’s Eau Claire press conference.

Bon Iver:

10-01-02 Berlin, Germany - Michelberger Music at Funkhaus

10-18 Oakland, CA - Fox Theater *

10-19 Oakland, CA - Fox Theater *

10-20 Oakland, CA - Fox Theater *

10-22 Orange County, CA - Beach Goth

10-23 Los Angeles, CA - The Hollywood Bowl &%

10-26 San Diego, CA - Copley Symphony Hall ^

01-22 Paris, France - Le Zenith

01-23 Utretch, Netherlands - Tivolivredenburg

01-24 Frankfurt, Germany - Jahrhunderthalle

01-25 Zurich, Switzerland - Samsung Hall

01-27 Esch-sur-Alzette, Luxembourg - Rockhal

01-29 Oslo, Norway - Spektrum

01-30-31 Stockholm, Sweden - Cirkus

02-02-03 Copenhagen, Denmark - Den Grå Hal

02-05 Hamburg, Germany - Mehr! Theater

02-06 Berlin, Germany - Tempodrom

02-08 Brussels, Belgium - Forest National

02-10 Blackpool, England - Empress Ballroom

02-12-13 Edinburgh, Scotland - Playhouse Theatre

02-15-16 London, England - Roundhouse

02-19 London, England - Eventim Apollo Hammersmith