Lorde welcomed her recent collaborator and producer Jack Antonoff of fun. and Bleachers for a cover of Paul Simon’s “Me and Julio Down by the Schoolyard” at Outside Lands Music Festival over the weekend.

The two previously got together at Governors Ball for a number of songs including a cover of Fleetwood Mac’s “Go Your Own Way” and Robyn’s “Hang With Me.”

Antonoff helped produce Lorde’s recent record Melodrama, helping the Australian singer to write and record much of the record along with several other producers.