Kellin Quinn
Kellin Quinn | |
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Quinn in March 2010 | |
| Background information | |
| Birth name | Kellin Quinn Bostwick |
| Also known as | Haunted Mouths |
| Born | April 24, 1986 Medford, Oregon, U.S. |
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| Instruments |
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| Member of | Sleeping with Sirens |
| Formerly of | For All We Know |
Kellin Quinn Bostwick (born April 24, 1986) is an American singer and musician. He is the lead vocalist and keyboardist of the post-hardcore 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.