Kellin Quinn
Biography
Kellin Quinn Bostwick (born April 24, 1986) is an American singer and musician. He is the lead vocalist and keyboardist of the rock band Sleeping with Sirens. He is known for his distinctive, high-pitched vocals and for collaborating with other artists, as well as the SEGA Sound Team on the game Sonic Frontiers (2022). Some of his best known collaborations are on the tracks "King for a Day" with Pierce the Veil, and "Love Race" with Machine Gun Kelly. In 2025, Quinn released A Collection of Greetings, his debut studio album under the solo project Haunted Mouths.
Bio from Wikipedia
Discography
Records they worked on — most-collected first.
Credited work
144 releases · 38 albums · active 2007–2026
- Performance · 198
- Other credits · 14
- Production · 3
Studios: MDDN Studios · Chango Studios · Foxy Studios · Sonic Debris Studios
Frequent collaborators
- Sleeping With Sirens
- Machine Gun Kelly (2)
- Pierce The Veil
- Karma Kids
- Oh! The Horror
- One Ok Rock
- 09 (3)
- Patient Sixty Seven











