Agnelli & Nelson are the collective name of Northern Irish music producers Christopher James Agnew and Robert Frederick Nelson, who have been writing and producing electronic dance music, primarily in the trance genre, since 1997. They are highly regarded for their significant contribution to the trance scene, with their early hits like "El Niño" and "Everyday" becoming iconic anthems, particularly in Ibiza. The duo has achieved five UK Top 40 hits and are known for their melodic and euphoric sound, collaborating with and remixing tracks for major artists such as U2, Armin van Buuren, and Ferry Corsten. Besides their main moniker, they have also produced music under various aliases including Afterburn, Cortez, Green Atlas, Quincey & Sonance, and The A&N Project, showcasing their versatility within electronic music. Their remix of John O'Callaghan's "Big Sky" was voted the number one trance production on Armin van Buuren's "A State of Trance" in 2007, highlighting their lasting impact and influence in the trance community.