Umphrey’s McGee continued their tour with the upstart group Spafford last night as the two bands stopped in San Diego for a show at The Observatory. And for the first time on the run, the two collaborated for a song during the headliner’s set.

For the “Example 1” jam in the first set that emerged out of an extended take on “Mantis,” Andrew “Red” Johnson joined Joel Cummins for a keys jam before filtering the tune back into “Mantis.”

Watch below.

Here’s a look at the setlist as it appears in our Box Scores section:

Umphrey’s McGee
The Observatory, San Diego, CA

Set I: Bad Friday, Walletsworth, Mantis Ghetts > Mantis > Example 1* > Mantis, Draconian, Reelin’ in the Years

Set II: JaJunk > Cut the Cable > Dump City, Call to Arms, Slacker, Miami Virtue > Eat, 1348

Enc: Hajimemashite > JaJunk

Notes: w/Red from Spafford on keys