Cardiknox, an American indie pop band formed in 2013, consisted of Lonnie Angle and Thomas Dutton. The duo met through a mutual friend while growing up in Seattle's suburbs. Angle was a theater major and singer, while Dutton was the lead singer of Forgive Durden and had written a concept album called Razia's Shadow. They began collaborating on an off-Broadway production before deciding to form Cardiknox. The band released their first singles "Hold Me Down" and "Technicolor Dreaming" in 2013. In November 2015, they signed with Warner Bros. Records and released their debut album Portrait in March 2016. The album featured notable singles such as "Wild Child", which reached Number 13 on the Billboard Spotify Viral 50 chart. Cardiknox toured extensively, supporting acts like Carly Rae Jepsen and Bleachers. In December 2018, they released their final single "Back in L.A." and announced their disbandment.