Songbook is an acoustic live album by American musician and Soundgarden vocalist Chris Cornell, released on November 21, 2011. The live album features songs recorded during Cornell's Songbook Tour, an acoustic solo tour which took place during March–May 2011 in the US, and is his first live album as a solo artist. 　　The songs on the tour varied in every show, and the album was recorded during various shows on the tour, and includes songs from Cornell's whole career: solo material, Soundgarden songs, Audioslave songs, Temple of the Dog songs, as well as covers of Led Zeppelin's "Thank You" and John Lennon's "Imagine". 　　Chris Cornell (born Christopher John Boyle; July 20, 1964) is an American rock musician best known as the lead vocalist and rhythm guitarist for Soundgarden and as the former lead vocalist for Audioslave. He is also known for his numerous solo works and soundtrack contributions since 1998. He is known for his wide vocal range, spanning B1-G5 in full-voice, and up to E6 in falsetto, as well as his powerful vocal belting technique. He was the founder and frontman for Temple of the Dog, the one-off tribute band dedicated to his former roommate, Andrew Wood. He has released three solo studio albums, Euphoria Morning (1999), Carry On (2007), and Scream (2009). Cornell was ranked 4th in the list of "Heavy Metal's All-Time Top 100 Vocalists" by Hit Parader. He performed the theme song to the James Bond film Casino Royale (2006), "You Know My Name."