Westdon Martin Abay, born April 5, 1971, in Manila, Philippines, is a Filipino rock singer and poet. He first emerged in the early 1990s as a founding member and lead vocalist of the band Yano, whose 1994 self‑titled debut album produced hits such as "Banal Na Aso, Santong Kabayo" and "Tsinelas". After Yano’s success and subsequent releases Bawal (1996) and Tara (1997) under BMG, Abay pursued a solo path in 2005, releasing the EP Sampol and the full‑length album Filipino (2006), which featured collaborations with Raimund Marasigan and Buddy Zabala. In 2013, he issued the concept album Rebulto, focused on the Rizal Monument, followed by the 2017 formation of Dong Abay Music Organization (D.A.M.O.) and the release of Humanidad. His song "Hula" won Best Folk/Pop Recording at the 2003 Awit Awards, and he was nominated for Favorite MYX Live Performance in 2007.