During his career, Packalen's certified albums and singles sales have amounted to over 370,000 copies, making him one of the 70 best-selling artists of all-time in Finland.

[3] On 16 January 2012, Packalen, described as the "Justin Bieber of Finland" by his label,[4] released his debut single "Frontside Ollie".

It received instant success, huge following online, and based on digital downloads debuted at number five on the Finnish Singles Chart before reaching the top position.

On 2 February 2019, during the Emma Gaala awards ceremony, Packalen announced his comeback with a live performance of "I'll Be with You".

On 11 January 2023, it was announced that Packalen would participate in Uuden Musiikin Kilpailu 2023 with the song "Girls Like You".