Little did we know, a Filipino historian-playwright penned the de facto ASEAN hymn in 1997, with music by a future National Artist. Titled "ASEAN, Oh ASEAN" (later changed to "ASEAN Song of Unity"), it was written by Dr. Nicanor Tiongson and composed by Ryan Cayabyab. However, in 2008, ASEAN adopted an official anthem: the "ASEAN Way" (a Thai composition), a product of a region-wide song competition to mark the ASEAN Charter on 15 December 2008. Nevertheless, the "ASEAN Song of Unity" was repurp