21 (Adele album) and vocal problems led to numerous alterations to the tour itinerary. The cancellation of the North American leg of the tour was due to a vocal haemorrhage on her vocal cords. The singer underwent corrective vocal surgery in November 2011 and cancelled all public appearances until February 2012. Adele performed "Rolling in the Deep" at the 2011 ECHO Awards, 2012 Grammy Awards and 2012 BRIT Awards ceremonies. "21" yielded five singles in total, including four worldwide releases. The lead single "Rolling in the Deep" was released in November 2010, and peaked the charts in the Netherlands, Germany, Belgium, Italy, and
Dogs (British band) replacement was found in rhythm guitarist Kevin Iverson, previously frontman of the band Springtide Cavalry. Iverson announced in December 2010 that he would be leaving Dogs for personal reasons. The band released an EP on 14 June 2010, entitled "We Are The Dogs", released independently without any label or PR output. Also, in early 2011, Dogs released a free seven track EP through their Facebook page entitled 'Fly Like Eagles'. On 21 June 2011 lead singer Johnny Cooke announced that the band were separating via a message on their official forum. On 11 May 2007 a concert was recorded at