Sombr (Shane Michael Boose) is an American indie rock singer-songwriter born July 5, 2005, in New York City. He began releasing music in 2021 under the stage name combining his initials (SMB) with the somber mood he experienced at the time. After his song "Caroline" went viral in late 2022, he signed with Warner Records. Sombr achieved mainstream recognition in 2025 when his singles "Back to Friends" and "Undressed" became viral hits, reaching the top 40 of the Billboard Hot 100 and charting in the top ten internationally. His debut album, I Barely Know Her, released in 2025, achieved commercial success. He won Best Alternative Video at the 2025 MTV Video Music Awards for "Back to Friends" and has performed on major platforms including The Tonight Show Starring Jimmy Fallon and Saturday Night Live. Sombr writes, records, and produces much of his music independently, often working from his home studio. He is known for melancholy anthems about yearning and heartbreak.