In 2009, Allo released her first independent album, UnFresh, a collection of 12 original songs. The album’s first single, “Dreamland”, features the rapper Blu.Allo’s reputation as a musician led her to a role as a singer and guitarist in American musician Prince’s band, The New Power Generation, in 2011. She began writing with Prince while on tour, collaborating on three songs, “Superconductor”, “The Calm” and “Long Gone”, which appear on Allo’s album, Superconductor.
Superconductor was released on 20 November 2012, and the album debuted at number one on Amazon.com’s Soul and R&B charts in France, the United Kingdom, and the US. The album also features musicians Maceo Parker and Trombone Shorty. In October 2014, she released her single “Tongue Tied”. Hello was released in April 2015 and was funded through PledgeMusic. In the same year, she collaborated with Prince on a covers project titled Oui Can Luv. In 2017, she appeared in the film Pitch Perfect 3 as Serenity, a member of the band called Evermoist, alongside Ruby Rose.