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United States Kellin Quinn is an American singer, songwriter, and musician known for his distinctive high-pitched vocals as the lead vocalist of the post-hardcore band Sleeping with Sirens. He has collaborated with numerous artists and expanded his career into fashion and artist development.
Quinn collaborated with Pierce The Veil on the song “King For A Day,” which is considered one of his most popular and best collaborations.
Kellin Quinn started a new project called Haunted Mouths and released the album 'A Collection Of Greetings'.
Kellin Quinn collaborated with As It Is on the re-recorded version of their debut album 'Never Happy, Ever After'.
Kellin Quinn owns his own clothing line, 'Anthem Made'.
Kellin Quinn is the founder of 'Dreamer Development Group', a support network for aspiring artists.
Kellin Quinn collaborated with the SEGA Sound Team on the game 'Sonic Frontiers' (2022), providing lead vocals for four songs on the soundtrack.
Quinn collaborated with Machine Gun Kelly on the track 'Love Race'.
Kellin Quinn Bostwick, born on April 24, 1986, in Medford, Oregon, is an American singer and musician. He is widely recognized as the lead vocalist and keyboardist for the post-hardcore band Sleeping with Sirens. Quinn is noted for his unique vocal range and has also been involved in various collaborations throughout his career. Prior to joining Sleeping with Sirens in 2009, Quinn was part of the Michigan band For All We Know and also auditioned for Dance Gavin Dance. His contributions to the music industry began with Sleeping with Sirens’ debut album, “With Ears to See and Eyes to Hear,” released in 2010 through Rise Records. This album sold 25,000 copies and achieved a peak position of number seven on the Billboard charts.
Quinn’s career is marked by several achievements and notable projects. In 2012, he participated in the music video for “King for a Day” by Pierce the Veil, a single that later achieved gold status in 2014 and platinum in January 2020. He further showcased his versatility by contributing lead vocals to four songs on the soundtrack for the video game “Sonic Frontiers” in 2022 and performed these tracks at the Sonic Symphony in September 2023. Beyond his band work, Quinn launched a solo side project with producer Cameron Mizell, “Downer Inc,” releasing a six-track EP titled “Whatever This Is” in 2020. In 2025, he debuted his solo project “Haunted Mouths” with the single “Further Til We Disappear,” followed by the album “A Collection of Greetings.” Quinn also owns a clothing line, “Anthem Made,” and founded “Dreamer Development Group,” a platform aimed at supporting aspiring artists.
Throughout his career, Quinn has engaged in numerous musical collaborations with a wide array of artists across different genres. Notable collaborations include work with Machine Gun Kelly on “Swing Life Away” (2013) and “Love Race” (2021), One Ok Rock on “Paper Planes” (2015), Good Charlotte on “Keep Swingin'” (2016), and Hollywood Undead on “Upside Down” (2020). He has also worked with artists such as Written By Wolves, Maggie Lindemann, and The Frst, demonstrating his broad appeal and adaptability within the music scene.
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