Before the release of the album (in May 2006), Keane had started their second world tour. However, because of the extensive touring, on 22 August 2006, Chaplin announced he had admitted himself to a clinic for drinking and drug problems. This initially resulted in the cancellation of three gigs and postponement of their September tour. The entire North American tour was cancelled outright to allow continued treatment. As a result, the upcoming UK and European tours, scheduled for October and November 2006, were considered to be liable for possible postponement depending on Chaplin's treatment. Chaplin then left the Priory Clinic in London on 6 October, but he continued to receive treatment. The tour reached for the first time South American countries (Argentina, Chile and Brazil) and saw the band's third visit to Mexico in late April with four dates, playing at the downtown zócalo in Mexico City, as well their first visit to Monterrey and Guadalajara. On 7 July 2007, Keane played at the UK leg of Live Earth at Wembley Stadium, part of a series of gigs similar to Live 8, to highlight the threat of global warming. They performed "Somewhere Only We Know", "Is It Any Wonder?" and "Bedshaped". The Under the Iron Sea tour was brought to an end with performances in Oporto, Portugal, and at the Natural Music Festival in El Ejido, Spain on 3 August and 4 respectively.