On Your Side is the debut EP by British boy band December 10, released in 2026. Alongside the title track, the EP features the new songs Us Against the World and What Are We Now, plus the previously released single Infinity (123). The recordings, made in Los Angeles, London, Nashville, and Stockholm, involved producers such as Julian Bunetta, Poo Bear, and Savan Kotecha, known for their work with One Direction and Justin Bieber, among others.