The whole world's on your side.
Side Hustle dance is a Rare Fortnite Emote. This emote is one of the Battle Pass cosmetics in Chapter 2 Season 2. It was available once you have reached Tier 39.
The gesture Side Hustle belongs to Chapter 2 Season 2. Thia gesture was available as a reward by unlocking Level 39 of Battle Pass from Chapter 2 Season 2.