Osei grew up interested in becoming an actress or dancer but her parents' interest in music exposed her to "funk, jazz, hip hop and soul" and cultivated an interest in music.[8] At the age of five she received a "pink Mickey Mousedrum kit" from her uncle: although it was her first exposure to drumming, it would only resonate later, at the age of 11, when a drum club was organized in her school and she felt compelled to permanently take the instrument up.[8] By the age of 12, Osei had started playing in bands.[8] When Osei was 15, she worked at a local music store in Wembley, which she credits with giving her exposure to drummers she "looked up to."[8]
Musical career
Osei was the drummer for The Faders from 2004 through 2006. The band was signed to Polydor and released the singles "No Sleep Tonight" and "Jump," each reaching numbers 13 and 21 in the UK Singles Chart, respectively.[9] The Faders appeared on Veronica Mars and their music was featured on the show's soundtrack.[10]
In 2004, she recorded the drums for Mantas album Zero Tolerance.
In 2016, Osei joined the band Simple Minds for their "acoustic phase" and recorded the album Acoustic with the band.[19][20] In early 2017 Simple Minds embarked on a full production tour in Australia and New Zealand, drummer Mel Gaynor's last tour with the band before Osei rejoined and replaced him for a stripped down, acoustic tour the remainder of the year.[21][22][23] Osei appeared on three tracks of the 2018 album Walk Between Worlds (the album was recorded before, during, and after the acoustic tours and the Acoustic album release) and joined the band as their full-time drummer for the promotional tour.[24][25] The tour, which launched in Glasgow, Scotland and included the first North American shows for the band in five years, was met with praise: The Guardian credited the band with sounding "less blokey," "modern and impressively energised."[26][27] As of 2019, Simple Minds has been recording material for a new album with Osei, aiming for a 2021 release.[28] That became the album Direction of the Heart, released in October 2022, three tracks on which Osei played.
In 2019, Osei joined Kelly Jones on his third solo tour.[29] Her first performances with Jones took place on June 1 at Usher Hall, in Edinburgh, Scotland.[30]