After their sold out debut in Richmond, VA on Friday night, Phish tribute act Runaway Gin made their way to The 8×10 in Baltimore, MD for a Saturday evening show. Phish fans got more than they bargained for, as Runaway Gin essentially dedicated the night to a special guest in the audience: Tom Marshall.

The band opened with “Tube,” followed by a non-stop segment featuring “Old Home Place,” “Moma Dance,” and “Maze.” The band followed this up with a four-song run including “Axilla,” “Runaway Jim” -> “Steam” > “Harry Hood.” “Also Sprach Zarathustra” > “Limb By Limb” came next, before “Llama” closed the set. What fans in attendance may or may not have noticed is that, in “Phish Dicks” fashion, the first letter of each song in the first set spelled out a special clue about what was to come: “TOM MARSHALL.”

The band began the second set by launching into the bittersweet intro of “Brian and Robert.” As the music played, singer/guitarist Andy Greenberg spoke to the crowd, confessing that he “didn’t know the words to this song” and asking if anyone in the room could help him out. Answering his appeal to the audience, Phish lyricist Tom Marshall–who wrote the words to “Brian and Robert”– joined the band onstage, leading them through the tune on vocals.

You can watch footage of Marshall’s sit-in below, courtesy of YouTube user Prehistoric Studios:

Check out a gallery of photos from the show below, via photographer Jason Herman. For tour dates, videos and live recordings visit Runaway Gin’s website.

Setlist: Runaway Gin | The 8×10 | Baltimore, MD | 1/28/17

Set 1: Tube, Old Home Place > Moma Dance > Maze, Axilla > Runaway Jim* -> Steam > Harry Hood, Also Sprach Zarathustra > Limb by Limb, Llama

Set 2: Brian and Robert^, Reba > Tweezer > Cities > You Enjoy Myself**> Carini > Lizards

Encore: Dogs Stole Things > Frankenstein > Tweezer Reprise

Notes: The first set spelled out “TOM MARSHALL”; *unfinished ^RG debut featuring Tom Marshall on lead vocals **w/ Midnight Rider teases