During their Primavera Sound set, the National brought some special guests up on stage. Justin Vernon (whose Volcano Choir project also made an appearance at the festival) joined them for “Slow Show” and the Walkmen’s Hamilton Leithauser and Paul Maroon helped out on “Mr. November.” Maroon also stuck around for “Terrible Love.” National frontman Matt Berninger joked that “he taught Justin how to play the guitar just a few weeks ago” before starting with the song. Watch both performances below.

“Slow Show” w/ Justin Vernon:



“Mr. November” w/ the Walkmen’s Hamilton Leithauser and Paul Maroon & “Terrible Love” w/ Maroon:



(via CoS)