Leon Thomas III is an American singer-songwriter and Grammy-winning producer who first gained recognition on Victorious. He shot to fame in 2024 with his genre-blending R&B hit “Mutt,” which topped multiple Billboard R&B charts and reached No. 12 on the Hot 100. In May 2025 he released the deluxe album MUTT Deluxe: HEEL, featuring collaborations with Kehlani, Big Sean and a Chris Brown remix. Now on a global world tour, he’s cementing his place in contemporary R&B.
