On 1 December 2009, Jónsi's official website,, was launched in anticipation of his debut solo album, Go, which was released the week of 5 April 2010. They released their self-titled first book in November 2006, which was an embossed hardcover limited to 1000 copies, along with their first album, Riceboy Sleeps, in July 2009. Apart from Sigur Rós, Jónsi also performs together with his partner Alex Somers as an art collaboration called Jónsi & Alex. He is also blind in his right eye from birth as a cause of a broken optic nerve from the brain. He is known for his use of a cello bow on guitar and his falsetto or countertenor voice. Jón Þór 'Jónsi' Birgisson (pronounced ( listen)) (born 23 April 1975) is the guitarist and vocalist for the Icelandic post-rock band Sigur Rós.