David Gilmour is widely regarded as one of the finest rock guitarists of all time, and is best known as the lead guitarist for the rock band Pink Floyd, one of the top selling acts in music history. He worked with Pink Floyd for several years before becoming a full-time member following the departure of Syd Barrett, and went on to become a major factor in defining the band's sound. He launched his solo career with a self-titled debut album in 1978, which he recorded during a period of inactivity from his main band, at the time prompting rumours of a possible split. Since then he has released occasional new material, while also working as a producer and guest musician for some top acts. Pink Floyd came to a seemingly permanent end following their world tour for 1994's The Division Bell, although they did reform, complete with Roger Waters, for a one-off performance in 2005, headlining the Live 8 concert in Hyde Park, London. Sadly, his relationship with Waters and the death of Rick Wright in 2008 means that Live 8 looks likely to be the last ever Pink Floyd concert. Since 1986 Gilmour has owned the Astoria houseboat, moored on the River Thames near Hampton Court, which he has converted into a recording studio.