Getty Images; Jatnna Nunez for Fuse

Twas the night before Halloween and the first day of New Orleans’ Voodoo Music + Arts Experience treated fans to bewitching sets by headliners Florence + The Machine, Jack Ü, Gerard Way, and a ton of others. A perfect 75° sunny day surrounded by music in the Big Easy? Count us in. Here are 10 of the most interesting things we witnessed at Voodoo 2015 on Friday (Oct. 30).

• Good news for Joy Formidable fans: before the Welsh group capped its set with "Whirring," singer Ritzy Bryan told the crowd, "We'll have a new album next year and we'll be touring. See you soon!" A new album would be the band's third, and first since 2013.

• Fun fact: if you go up to a man dressed as a giant penis at Voodoo and tell him "Hey man, stop being a dick," he will smile and raise his beer in your direction.

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• Joey Bada$$ brought a brass band, the Soul Rebels, to back him up at Voodoo. The group did a stellar job whipping up the crowd’s anticipation by playing several songs before Joey hit the stage. But the crowd at the Carnival stage hit frenzy mode when he stepped out and blended his rhymes with the full blast of the brass band.

• Metric singer Emily Haines catered to the New Orleans crowd by emerging in a Mardi Gras getup when the band took the main stage. 

• During the downtime between Metric and Modest Mouse on the Altar main stage, Alesso drew an enormous crowd at the Le Plur stage, shooting out streamers and inspiring grinding during his Roy English-featuring single "Cool."

• Per Stereogum's Scott Lapatine, Jason Isbell dedicated the song "Speed Trap Town" to Grantland, the ESPN-run culture site that was shut down on Friday.

• Cartwheels through a mud pit? One brave soul took on the challenge on Friday, and a few more might later this weekend, with New Orleans expected to receive rain.

• Skrillex once again showed off his best whip and nae nae during Jack Ü's set, when he jumped on the DJ booth to dance to Silento's "Watch Me." The viral hit has been a favorite of Skrillex's throughout his 2015 shows.

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• That raucous cheer festival goers heard from the VIP section near the end of Florence + The Machine's headlining set was caused by a bunch of New York Mets fans, who were huddled around a TV in the back watching their team close out Game 3 of the World Series. Even in New Orleans, the Amazin's have their diehards out in full force.

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• And while Florence jumped and skipped across the huge Altar stage while singing the house down in Nightmare Before Christmas facepaint, truly getting into the Halloween spirit, she converted a whole army of new fans who wandered over when Girl Talk’s set on the nearby Carnival stage ended.