Dev Lemons

Devon Vonder Schmalz (born March 12, 1999), also known as Dev Lemons, is an American singer-songwriter, record producer, and YouTuber. She initially gained popularity by making music theory videos as SongPsych on TikTok and YouTube and through her personal YouTube channel, Dev Limes. She released her debut studio album, Surface Tension, in 2025, and is set to release her second album, Hunting What We Already Killed, on October 2, 2026.