In the latest episode of GRAMMY.com's annual Meet The First-Time GRAMMY Nominee series, ascendant rapper Jack Harlow, whose catchy single "Whats Poppin" dropped in January 2020, describes how he reacted to the unexpected news that the track had been nominated for Best Rap Performance at the 2021 GRAMMY Awards show.

Tune into the 63rd GRAMMY Awards Sunday, March 14, on CBS to find out who will win.

Pull Up On The Best Rap Song Nominees | 2021 GRAMMYs