Between Miami Music Week, Winter Music Conference and Ultra Music Festival , Miami was overrun with hundreds of thousands of electronic music fans and industry insiders this past week for one of dance music's largest global events. As always, Ultra pulled out all the most epic stops for this 2018 edition, which just so happened to also be the festival's 20th birthday. 

After weeks of speculation, Swedish House Mafia was indeed Sunday night's mystery headliner, reuniting for the first time since they parted ways in 2011. Will Smith swung by Marshmello's set for "Miami," Smith's massive 90s hit in a surprise nod to Ultra's host city. Arcadia Spectacular was as spectacular as ever, Halsey came out to guest on The Chainsmokers' 2017 hit "Closer," and much more.

We will update this post as more videos from Ultra 2018 are released.

Will Smith Joins Marshmello for "Miami" on Saturday Night

Kaskade Tops the Main Stage, Sunday

Above & Beyond Leaves Us in a State of Trance, Sunday

Arcadia Spectacular: Day 1 Entire Livestream

David Guetta Leads the Main Stage, Sunday

Adam Beyer Headlines Megastructure, Friday

Resistance Megastructure: Day 2 Entire Livestream

Steve Aoki on the Main Stage, Friday

Jamie Jones Leads the Megastructure, Saturday

Oliver Heldens on the Main Stage, Friday

Armin Van Buuren on the Main Stage, Friday

Tiësto Leads the Main Stage, Saturday

Carl Cox Brings the Yes to Resistance, Friday

Afrojack Carries the Main Stage on Saturday Night

Hardwell Leads Friday Night's Main Stage

The Chainsmokers Atop Saturday's Main Stage