Last night V attended the annual At Night Ultra party in Miami, where Nicky Romero, CAZETTE, Avicii, Hardwell and more top DJs soundtracked the early-evening to early-morning at this decadent private residence. At Night, Avicii, Ash Pournouri and Ralph Lauren's Denim & Supply put on the multi-faceted concept event, which introduced the limited edition Playbutton while amping an Ultra Festival-going crowd before the official weekend. Okay, follow us: The Playbutton is a wearable MP3 player created by Ralph Lauren's Denim & Supply and House for Hunger—an organization started by Avicii and manager Ash Pournouri, and it comes preloaded with tracks curated by Avicii, including Albin Myers, Arty, CAZZETTE, David Tort, EDX, Hardwell, Moby, MYNC, Nicky Romero and Norman Doray. Tracks were donated to help raise awareness for this initiative. Long story short: This was a party in the name of everything worthwhile: fashion, dance music... and helping those in need!