Kasabian are an English rock band formed in Leicester in 1997. The band's original members consisted of vocalist Tom Meighan, guitarist and backing vocalist Sergio Pizzorno, and bassist Chris Edwards. The band's line-up was completed by Jay Mehler in 2006, replacing guitarist Christopher Karloff, and drummer Ian Matthews in 2004 after a string of session drummers. Kasabian have released four studio albums – Kasabian (2004), Empire (2006), West Ryder Pauper Lunatic Asylum (2009), and Velociraptor! (2011).