He has written songs for stars like SZA and has become a standard bearer for a new sound in modern R&B. Grammy-winning and Brooklyn-born Leon Thomas effortlessly bridges music, acting, and production. In 2022, he was signed to Ty Dolla $ign's EZMNY Records and made his remarkable debut with the albumElectric Dusk(2023), which featured prominent collaborations with Victoria Monét, Benny the Butcher, and Ty Dolla $ign. Tracks like “Breaking Point” and “Crash & Burn” have collectively garnered over 151 million streams globally, cementing his place as a fast-rising star in modern R&B.

His groundbreaking work on SZA's "Snooze" earned him a Grammy in 2024, further underscoring his influence on the genre's development. Thomas' second album,MUTTY, was named Billboard's No. 1 R&B album of 2024, and spent several weeks at number one on Apple Music's R&B/Soul chart. The album has over 315.7 million streams globally, debuting in the top 10 on Apple Music worldwide.

In May 2025, he releasedMUTT Deluxe: HEEL, a bold follow-up to his second album via EZMNY/Motown Records.HEELdelves even deeper into his sonic universe, offering a fearless blend of psychedelic R&B, rock textures and soul. The album includes new collaborations with Kehlani, Big Sean and Halle.

Thomas' television debut inThe Late Show with Stephen Colbertproved his undeniable musicianship, while his viral NPR Tiny Desk performance, which reached No. 2 on YouTube, further cemented his global cultural influence.

Danish fans of Leon Thomas, and modern R&B in general, can look forward to experiencing plenty of this at the highest caliber when he takes over Store VEGA on his Mutts Don't Heel Tour in 2026.