The group was created by Emma Nors and Palle Hammarlund and features four girls that call themselves Molly, Holly, Polly and Yolly.

Dolly Style was formed in the summer of 2014 by Emma Nors and Palle Hammarlund under Capitol Records Sweden.

[5] In April 2015, it was announced that Emma Pucek had left the group, and that she had been replaced with another person, Marielle Myhrberg, who would take on the "Polly" persona.

[7] On 1 May, Dolly Style uploaded a preview from a performance of a new song called "Upsy Daisy", a release date has not been announced yet for this song, however, on 4 May, Dolly Style revealed the cover art for their second single called "Cherry Gum" and announced the release date for 8 May.

In June 2017, Dolly Style released their fifth single "Unicorns & Ice Cream", with the music video for it later coming out in August.

In late 2018, Sarah von Reis was fired from the group on short notice and replaced by Caroline Aronsson.

[8] Dolly Style participated in Melodifestivalen 2019 with the song "Habibi", but failed to advance from the third heat, finishing in fifth place.

[citation needed] On 24 December 2024, Mikaela Samuelsson, who previously played Molly, was revealed to have returned to Dolly Style as a new character, Yolly.