On Monday, reports started to surface that members of the Philadelphia Eagles were practicing to none other than the Grateful Dead at training camp.

After initially speculating that assistant coach Cory Undlin was the Deadhead in attendance, reporters soon learned that safety Malcolm Jenkins was the mastermind behind the Grateful Dead “playlist.” The practice “setlist” featured “Bertha”, “Mama Tried”, “Big Railroad Blues”, “Playing In The Band”, “Drums/Space”—”a long one”—and “Me and My Uncle” (which probably means they were listening to the Dead’s self-titled 1971 live album, best known as Skull and Roses).

“I just started getting into [the Grateful Dead] in the last few months,” Jenkins told NBC Sports reporter Reuben Frank. “Trying to expand my musical palette a little bit. I don’t think any of the guys had any idea what it was.”

Newly re-acquired wide receiver DeSean Jackson had some fun with Jenkins’ music selection, but seemed to get bored with the Dead playlist rather quickly. “It was cool for a while, but had to spice it up a little bit, man,” Jackson told Frank. “[Team owner] Mr. [Jeffrey] Lurie came over and said something about one of the songs he used to listen to when he was 17.”

With a recent Super Bowl victory still on Philly sports fans’ minds, the Eagles hope to be dancin’ in the streets again come February.

[H/T NBC Sports Philadelphia]