CJ Camerieri (born in New Jersey) is a trumpet and French horn player, arranger, and producer.

Camerieri is best known as the brass player for Paul Simon,[1] Bon Iver,[2] and the contemporary classic ensemble yMusic.

Camerieri graduated with a degree in Classical Trumpet Performance from The Juilliard School in 2004 where he was featured as a Concerto Soloist[6] and went on to tour with Sufjan Stevens,[7] Rufus Wainwright, The National, Sean Lennon,[8] Belle and Sebastian,[9] and starting yMusic in 2008.

[10] In 2021, CJ released a solo album under the moniker CARM which features some of CJ's long-time collaborators including Justin Vernon, Sufjan Stevens and Shara Nova.

His French horn playing appears on the 2023 Yo La Tengo album This Stupid World.