"Qué Hiciste" (English: What Have You Done) is a song recorded by American singer Jennifer Lopez for her fifth studio album, Como Ama una Mujer (2007). It was written and produced by Marc Anthony and Julio Reyes Copello, with additional writing from Jimena Romero. "Qué Hiciste" became a commercial success for Lopez, 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. Lopez performed the song on American Idol on April 11, 2007; becoming the first artist ever to perform a Spanish song on the show.