Joshua Keeler Ramsay is a Canadian singer, songwriter, producer, recording engineer, and multi-instrumentalist. He is best known for being the lead vocalist of the pop rock band Marianas Trench. He has produced and has written songs for a wide array of artists including Carly Rae Jepsen, Nickelback, Jessica Lee, Faber Drive, and Suzie McNeil.

Marianas Trench is a Canadian pop rock band from Vancouver. They have released five studio albums: Fix Me (2006), Masterpiece Theatre (2009), Ever After (2011), Astoria (2015), and Phantoms (2019). The band has been nominated for seven Juno Awards and won Group of the Year in 2013. They have received praise for their showmanship, vocal harmonies, and genre-blending music. Their albums Masterpiece Theatre and Ever After have reached double-platinum status, while their singles "Haven't Had Enough", "Desperate Measures", "Fallout", "Stutter", and "All to Myself" are certified 3× platinum in Canada.