Photo of Francis and the Lights' Francis Farewell Starlite performing at Eaux Claires, by Nate Ryan

After headlining Friday night at Eaux Claires Music & Arts Festival and unveiling a new album, Bon Iver's Justin Vernon showed up again on Saturday night, helping Francis and the Lights close out the second edition of the fest alongside a surprise appearance from Chance the Rapper.

The trio performed a rendition of "Friends," the recent Francis and the Lights track which features Vernon and Kanye West. Chance the Rapper sampled the song in advance earlier this year on his Coloring Book song "Summer Friends." 

The bulk of last night's set consisted of new material making up Francis and the Light's new album Farewell Starlite, a nod to the name of frontman Francis Farewell Starlite.

Chance has subsequently confirmed Francis will be opening for his upcoming tour.

Fan footage of Francis, Chance and Vernon's performance—including dancing—can be seen below.