By the early 1980s, bachata's popularity could not be denied. Due to popular demand, more radio stations began playing bachata, and bachateros soon found themselves performing on television as well. Bachata in the meantime had begun to take on a more dance-hall sound: tempos increased, guitar playing became punchier, and call and response singing more prevalent. Bachata style merengues, or guitar merengues, also became an increasingly important part of the bachata repertoire. Blas Durán was the first to record with electric guitar in his 1987 bachata-merengue hit, "Mujeres hembras".