Qué Hiciste is a song recorded by Jennifer Lopez for her fifth studio album Como Ama una Mujer.
The song was written and produced by Marc Anthony and Julio Reyes, with additional writing from Jimena Romero.
"Qué Hiciste" became a commercial success for Jennifer, appearing in a wide range of charts around the world.
The song became her first Spanish-language song to chart inside the Billboard Hot 100, reaching a peak position of eighty-six.
It also peaked atop of Billboard's Hot Dance Club Play and Hot Latin Tracks charts.
The song additionally reached the top position in Italy and in Switzerland.
Jennifer performed the song on "American Idol" on April 11, 2007, becoming the first artist ever to perform a Spanish song on the show.