As usual, DJ Tiesto sold out his performance at the Ultra Music Festival in Miami with over 50,000 electronic dance music fans. He surprised fans & debuted his unfinished Kanye West remix and even though the DJ says he’s still working on perfecting the track with Yeezy, the unfinished track seemed to receive a positive reaction from the crowd. Check out the footage after the jump!!

@ItsLukieBaby

MTV: “Of course, fans were completely floored when Tiësto launched into one of his latest remixes — an as yet unfinished mix of rapper Kanye West’s “Lost in This World.” At first it seemed it may have taken the audience a second to take stock of what they were actually hearing — West’s soulful lamenting lyrics over dark, hard-hitting synths and Tiësto drums. The pause was brief, as hands were in the air in a matter of moments. Tiësto revealed that the song is not yet finished, as he and West are collaborating on song tweaks.”