IDER are an English singer-songwriter duo from London, United Kingdom, composed of two friends Megan Markwick and Lily Somerville. Their music style combines features of various musical genres, and it has been described as "post-genre" or "cross-genre". Formed in 2016 after its members met at Falmouth University, IDER has released a number of singles, and released their debut EP, Gut Me Like an Animal, in 2017.