Beyond the “No Kings” T-shirt, former special counsel Smith got an onstage shout out from the Foo Fighters. Lead singer Dave Grohl dedicated the band’s 1997 hit “My Hero” to “my new friend Jack” as Smith watched on from the crowd.

Grohl also gave a nod to Smith’s recent brush with Senator Eric Schmitt in D.C. by taking the stage in a shirt with the University of Iowa Hawkeyes logo.

The team’s name was at the center of an embarrassing mix-up for Schmitt during his questioning of Smith last week in the Senate.