Not3s (pronounced "/noʊts/") is a British rapper and singer from Hackney, London. He is best known for his UK top 20 songs, "My Lover" (Mabel remix) and "Fine Line", both of which are collaborations with Mabel. He was nominated for the BBC Sound of 2018. His breakthrough song, "Addison Lee", has been described as a viral hit and has achieved much publicity for the singer. The song, which takes its name from the London-based taxi firm, achieved such popularity that Not3s was invited to the firm's Christmas party in KOKO to perform the song.