Kellin Quinn

About

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.

Quinn was the vocalist of the band Closer 2 Closure with guitarist and songwriter Titus Lockard from 2005 to 2008, and also auditioned to become the vocalist for Dance Gavin Dance before joining Sleeping with Sirens in 2009. He is also the former vocalist of the Michigan band For All We Know.
The band released their first album in 2010, With Ears to See and Eyes to Hear through Rise Records, which sold 25,000 copies, and reached number seven on the Billboard charts.
Sleeping with Sirens released a single in celebration of Halloween, “Dead Walker Texas Ranger” on October 22, 2012. Quinn participated in the music…