The 550th UFC event is known variously at UFC Vegas 18, UFC Fight Night: Overeem vs. Volkov, UFC Fight Night 184, and UFC on ESPN+ 42. It will take place on Saturday, February 6, 2021, at the UFC APEX in Las Vegas, Nevada.

These are the songs they walked out to, winner first.

Alexander Volkov defeated Alistair Overeem by TKO (Strikes, Round 2, 2:06)

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Cory Sandhagen defeated Frankie Edgar by KO (Flying Knee, Round 1, 0:28)

Clay Guida defeated Michael Johnson by Unanimous Decision (30-27, 30-27, 30-27)

Alexandre Pantoja defeated Manel Kape by Unanimous Decision (29-28, 29-28, 30-27)

Beneil Dariush defeated Diego Ferreira by Split Decision (28-29, 29-28, 29-28) 

Danilo Marquez defeated Mike Rodriguez by Technical Submission (RNC, Round 2, 4:52)

Devonte Smith by Justin Jaynes by TKO (Doctor Stoppage, Round 2, 3:38)

Karol Rosa defeated Joselyne Edwards by Unanimous Decision (30-27, 30-27, 30-27)

Lara Procopio defeated Molly McCann by Unanimous Decision (30-27, 29-27, 29-28)

Seung Woo Choi defeated Youssef Zalal by Unanimous Decision (29-28, 29-28, 30-27)

Timur Valiev defeated Martin Day by Unanimous Decision (30-25 30-25, 30-26)

Ode Osbourne defeated Jerome Rivera KO (Round 1,0:26)