Leon George Thomas III (born August 1, 1993) is an American singer, songwriter, musician, record producer and actor. He began his career as a child actor on Broadway, appearing in the musicals The Lion King, Caroline, or Change and The Color Purple across the 2000s. He gained wide recognition for starring as Andre Harris in the Nickelodeon series Victorious (2010–2013).
Shifting focus onto his music career, Thomas achieved success in the 2010s as a member of the production duo the Rascals. During this period, he co-wrote and co-produced for artists including his Victorious co-star Ariana Grande, Babyface, Drake, Rick Ross, SZA, and Toni Braxton. He also released three mixtapes and an extended play under Rostrum Records.
In 2022, he signed with Ty Dolla Sign's EZMNY Records and Motown. At the 67th Annual Grammy Awards, he won Best R&B Song for co-writing the SZA song "Snooze". He achieved critical and commercial success with his second album, Mutt (2024), which became his first entry on the Billboard 200. Its lead single, "Mutt", became his first solo entry on the Billboard Hot 100 and peaked at number six. At the 68th Annual Grammy Awards, he received six nominations, including Album of the Year and Best New Artist, and won Best R&B Album for Mutt and Best Traditional R&B Performance for "Vibes Don't Lie".
