Sau was a music group from Catalonia, which rose to fame in this area in the 1990s, being among the first groups to write pop music with Catalan lyrics, known as rock català. The band's two main members were Carles Sabater, singer, and Pep Sala, who played guitar and sometimes keyboard. Carles Sabater died in 1999 following a concert, which would mark the end of the band's existence. Sau's hits include the singles Boig per tu ("Crazy about You") and El Tren de Mitjanit ("Midnight Train").