in on their success". The band countered that it regularly releases new music not to make money, but to avoid the "boredom" of "spending three years touring on one album". Soon after the release of the EP in the UK, the band announced that Andy Nicholson would not take part in the band's forthcoming North America tour due to fatigue from "an intensive period of touring". On returning to the UK, Nicholson confirmed that he would leave Arctic Monkeys and start his own project. He also said that he couldn't deal with the band's fame and success over the previous six months. In a statement on their official website, the band said: "We are sad to tell everyone that Andy is no longer with the band", also confirmed that Nick O'Malley – former bassist with the Dodgems who had drafted in as temporary bassist for the tour – would continue as bassist for the rest of their summer tour schedule. Shortly after, Nick O'Malley was confirmed as the formal replacement for Nicholson. Arctic Monkeys' first release without Nicholson, the single "Leave Before the Lights Come On", came on 14 August 2006. Turner said that the song was one of the last songs he wrote before their rise to fame, and suggested that "it feels very much like it could be on the album". Peaking at No. 4 in the UK, the single became the band's first single not to reach No. 1. The band was re-united at the Leeds Festival when Nicholson met up with his former bandmates and his replacement bassist, O'Malley. Only the original band members, minus Nicholson, were present at the award ceremony when Whatever People Say I Am, That's What I'm Not won the 2006 Mercury Prize two weeks later. 2007: Favourite Worst Nightmare The band's second album, Favourite Worst Nightmare, was released on 23 April 2007, a week after the release of accompanying single "Brianstorm". Like its predecessor, Favourite Worst Nightmare also quickly reached No. 1 in the album charts. Turner described the songs as "very different from last time", adding that the sound of some tracks are "a bit full-on – a bit like "From the Ritz to the Rubble", "The View from the Afternoon", that sort of thing". A secret gig played at Sheffield's Leadmill on 10 February 2007, debuted seven new songs (six from Favourite Worst Nightmare and one other). Early reviews