"Hot in It" is a song by Dutch DJ and producer Tiësto and English singer Charli XCX, released on 30 June 2022 through Musical Freedom and Atlantic Records as the fourth single from Tiësto's seventh studio album Drive. It marks the pair's first direct collaboration, with Tiësto having previously remixed Charli's 2012 collaboration with Icona Pop, "I Love It", and her 2014 single "Break the Rules".
Commercially, the song reached number one in Latvia and the top 40 in The United Kingdom, CIS, Hungary, Ireland, and The Netherlands.