Born in London, Kwabena Adjepong was raised by foster parents in Bermondsey, South London Borough of Southwark. His school music teacher Xanthe Sarr, an ethnomusicologist and manager of the Southwark Youth Orchestra introduced him to the National Youth Jazz Orchestra. Accepted in the programme, Kwabs became the lead singer of the orchestra for three years. After his graduation, he studied jazz at the Royal Academy of Music.
In 2011, he was in the BBC TV show Goldie's Band: By Royal Appointment of drum-and-bass musician Goldie, a UK nationwide platform to search for young talented musicians, and one of twelve chosen to create some musical pieces for a special performance at Buckingham Palace. This culminated in Kwabs appearing in a 2011 presentation with Prince Harry attending with Kwabs singing a version of "Lost Child".
In 2012, Kwabs released a cover versions of "Like a Star" by Corinne Bailey Rae and "The Wilhelm Scream" by James Blake. The Kwabs version went viral on YouTube. Kwabs signed a recording contract with Atlantic Records collaborating with a number of artists for his debut EP Wrong or Right with critical acclaim. The subsequent EPs Pray for Love and Walk EP are more pop-oriented sound, with Walk EP containing the hit single "Walk" his best known release launched on 5 October 2014 on Atlantic Records.It was a minor hit in UK Singles Chart reaching number 71, but became hugely popular in Germany, Austria and Switzerland. It was also number one on the iTunes Music charts. He is currently working on his debut album.