The dance scene was strong Friday night at ACL’s weekend 2, as Chicago hip hop-remix outfit Flosstradamus segued into Disclosure, the non-Foo Fighting headliners.

Flosstradamus is fun and ridiculous. They asks people to throw something into the air, and when the beat drops, a thousand objects, paper, bandanas, cans, and God knows what, go flying.

The rest of the time, the crowd’s baseline of activity is constant movement.

Flosstradamus performs at the Austin City Limits Music Festival in Zilker Park on Friday October 9, 2015. JAY JANNER / AMERICAN-STATESMAN

They’re egged on half the time by one of the Flosstradamus guys, perched on top of the stage setup (which, incidentally, looks like a one-storey rock castle, complete with basement door, a flag and strobe lights), yelling to the crowd, “bounce bounce bounce bounce.”

They definitely got the message.

All manner of sights were on display in the crowd as the sun went down. A 50 something dude with a green Yeti coolers baseball cap, was hanging back, nodding his head. Three people walk past in matching where’s Waldo outfits. A sign in the crowd reads, simply yet inexplicably, “NON SEXUAL GAY STUFF.”

In a sense, party DJs/Trap/EDM outfits have an advantage. They don’t need to be headliners—they can just spin the headliner’s records.

“How many people are to see Drake?” Flosstradamus asks the crowd. Then they just sample him into the mix. “All I gotta do is put my mind to this …” as the crowd sings the Fetty Wap chorus.

Last weekend Run The Jewels compared their show to a Zoomba class, but this is the real Zoomba, and the crowd danced, whether in cowboy boots or spinning a lit hula hoop.

Things got a little boring in this show. The call outs to the crowd start to sound forced “get your lighters and cell phones out!” Ditto for calls out to “Hoodie Nation,” the duo’s superfans.But there are a lot of goofy grins on faces — it’s hard not to do that with a dance party. Especially one with bits of Rihanna, some vintage DMX and Daft Punk.Towards the end, half that crowd started filtering out, some definitely towards Foo Fighters, but maybe half walked directly over to watch Disclosure.You have to respect Disclosure’s musicianship. They sing, plays bass. They even played cowbells. It’s like turning an electronic outlet to analog.It’s not the same, drop-everything and dance, urgency of mixtape artists like Flosstradamus, but it’s interesting and fresh (in an 80s revival kind of way.) Judging from the crowd, the UK duo are just speaking to this generation in a shorthand that Foo Fighters fans can’t begin to understand.