annual summer party until 2005. Until 1990 the three great Oxford choral foundations of Magdalen College (first year), New College (second year) and Christ Church (third year) held their "white tie" Commemoration Balls in consecutive years on a triennial basis, each being widely regarded as the most prestigious ball being held in Oxford in that year, but the 1990 incident at Christ Church upset the tradition as various other colleges claimed Christ Church's (third year) slot, and continue to do so after the Christ Church Ball was reinstated in 2005. The cancellation of Magdalen College's (first year) Commemoration Ball in 2015, and its reinstatement in the "New College" (second) year of 2016, completed the break with tradition. In 2013, Balliol College held a Commemoration ball to mark the 750th Anniversary of the College's foundation, the 2023 Commemoration ball will be only the third Commemoration held at the College since 1969. Similarly, the commemoration ball hosted by Worcester College on 27 June 2014 was the highlight of celebrations to mark the college's tercentenary. 2003 — Magdalen College 2004 — New College 2005 — Trinity College, Worcester College, Christ Church, St. John's College 2006 — Magdalen College 2007 — New College 2008 — Trinity College, Worcester College, Christ Church, St. John's College 2009 — Magdalen College, Oriel College 2010 — New College, Wadham College 2011 — Trinity College, Worcester College, Christ Church, St. John's College 2012 — Magdalen College, Oriel College 2013 — New College, Balliol College 2014 — Trinity College, Worcester College, Christ Church, St. John's College, Merton College, Exeter College Hertford College 2015 — Oriel College, Magdalen College (Cancelled) 2016 — New College, Magdalen College, The Queen's College 2017 — Trinity College, St John's College, Worcester College, Christ Church, Corpus Christi College 2018 — Oriel College 2019 — New College, The Queen's College, Magdalen College (Cancelled again) 2022 — New College, The Queen's College, Christ Church, Trinity College 2023 — Balliol College, Magdalen College, Oriel College Performances Commemoration ball organising committees generally seek to secure private performances from leading entertainers; some notable performances are listed below. 2022 Example, The Academic, (New College) Boney M., (The Queen's College) 2019 Everything Everything, (The Queen's College) 2018 Sigma, (Oriel College) 2017 Scouting for Girls, Redlight (Christ Church) Example (St. John's) Izzy Bizu, Tiggs da Author, Clokkemaker (Trinity College) 2016 Chase and Status, VITAMIN, The Electric Swing Circus, (Magdalen College) Circa Waves, Gentleman's Dub