were relaxed, with the band playing at all hours of the day, recording in different rooms, and listening to the Beatles, DJ Shadow, Ennio Morricone and Miles Davis for inspiration. Radiohead released their third album, OK Computer, in May 1997. It found the band experimenting with song structures and incorporating ambient, avant-garde and electronic influences, prompting Rolling Stone to call the album a "stunning art-rock tour de force". Radiohead denied being part of the progressive rock genre, but critics began to compare their work to Pink Floyd, whose early 1970s work influenced Jonny Greenwood's guitar parts at the time. Some compared OK Computer thematically to Floyd's bestseller The Dark Side of the Moon (1973), although Yorke said the album's lyrics were inspired by observing the "speed" of the world in the 1990s. Yorke's lyrics, embodying different characters, had expressed what one magazine called "end-of-the-millennium blues" in contrast to the more personal songs of The Bends. According to the journalist Alex Ross, Radiohead had become "the poster boys for a certain kind of knowing alienation" as Talking Heads and R.E.M. had been before. OK Computer received acclaim. Yorke said he was "amazed it got the reaction it did. None of us fucking knew any more whether it was good or bad. What really blew my head off was the fact that people got all the things, all the textures and the sounds and the atmospheres we were trying to create." OK Computer was Radiohead's first number-one UK chart debut, and brought them commercial success around the world. Despite peaking at number 21 in the US charts, the album eventually met with mainstream recognition there, earning Radiohead their first Grammy Awards recognition, winning Best Alternative Album and a nomination for Album of the Year. "Paranoid Android", "Karma Police" and "No Surprises" were released as singles, of which "Karma Police" was most successful internationally. OK Computer went on to become a staple of "best-of" British album lists. In the same year, Radiohead became one of the first bands in the world to have a website, and developed a devoted online following; within a few years, there were dozens of fansites devoted to them. OK Computer was followed by the year-long Against Demons world tour, including Radiohead's first headline Glastonbury Festival performance in 1997. Despite technical problems that almost caused Yorke to abandon the stage, the performance was acclaimed and cemented Radiohead as a