JAS was a Peruvian rock band formed in 1986 in Lima, Peru.
Members were frontman Sergio Cava (now Fiorella Cava), Joni Chiappe and Coco Cortés.
They had two singles in the local charts: "Personalidad" and "No quiero más Ska" both from their debut album Mueres en tu Ley.
"Ya no quiero más ska" has more than 5 million plays on Spotify as of August 2024. It has been called "one of the most representative songs of Peruvian rock" and an "immortal hit".