The song also entered atop the charts in Australia, Canada and New Zealand, peaked at number two in Austria, Germany, Ireland, Lithuania, South Africa, Switzerland and the UK, and within the top ten in Denmark, Finland, the Netherlands, Norway and Sweden.
Harlow posted a snippet of the track on his social media accounts on April 1, 2022, captioning it in part "How 'bout this one next?
On June 26, Harlow performed "First Class" at the 2022 BET Awards alongside Brandy, who released a freestyle to the song's instrumental a month earlier.
[11] "First Class" debuted at number one on the US Billboard Hot 100, becoming the year's first hip hop song to reach the top.
[31][32] "First Class" debuted at number two on the UK Singles chart and spent 5 consecutive weeks there, blocked from the top by Harry Styles "As It Was".