José Miguel Conejo Torres, better known by his artistic name Leiva, is a Spanish singer, musician and songwriter. Between 2001 and 2010 he led with Ruben Pozo the Spanish rock band Pereza, with which he recorded 6 albums. After the dissolution of the band, he started a solo career with 3 charting solo albums: Diciembre in 2012, Pólvora in 2014 and Monstruos in 2016.

Pereza was a Spanish rock group from Alameda de Osuna (Madrid) comprising Rubén Pozo Prats and José Miguel Conejo Torres, artistically known as Rubén and Leiva. They have recorded six albums Pereza, Algo para cantar, Animales (Animals), Los amigos de los animales, Aproximaciones (Approximations) released in the summer of 2007, Aviones (Aeroplanes), released in August 2009, and a last compilation that includes two previously unreleased discs: “Mama Quiero Ser una Estrella del Rock'n’Roll” and “Baires”, recorded and mixed in Argentina. The group has also released two DVDs. The first was called Algo para encantar and it contains videos from their previous album Algo para cantar and some live tracks. The second DVD is called Barcelona, which is a recording of a live concert in that city along with a CD called Rarezas (Rarities), which contains previously unreleased tracks from the band's early days.