Las Ketchup is a Spanish girl group formed in 2001 made up of four sisters: Lucía, Lola, Pilar and Rocío Muñoz. They are best known for their 2002 single "The Ketchup Song" (Aserejé), which became a huge hit around the world. However, the song did not reach the Billboard charts in the United States.
They represented Spain at the Eurovision Song Contest 2006 in Athens with the song Un Blodymary. Despite their star status, the song could only manage to finish in 21st place.