Flynn Haddigan, known professionally as BL3SS, is a DJ and producer based in London, England. Flynn starting producing music while at the University of Manchester during the COVID-19 pandemic in the United Kingdom. When the pandemic's restrictions ended, Flynn began DJing at house parties under the stage name of BL3SS. He then went on to perform in clubs and at festivals across the country.

In March 2024, BL3SS released the song Kisses together with CamrinWatsin and bbyclose, which went viral and earned them a chart position in the German and British singles charts. Referred to as "the new generation of British talent", it reached the top 10 at number 5 in the British charts and was a hot candidate for Song of the Summer, but then only ranked at number 25. Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.