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
Authority (album) Authority (album) Authority is the fifth studio album by British electronic music group Client, released on 21 March 2014 through German electronic music label Out of Line. After former singer Sarah Blackwood's (alias Client B) retreat from the band in December 2010, band leader Kate Holmes remained the only member of Client. The band announced that "Kate Holmes is likely to continue with the band's activities after taking a short break" and would look out for "a brand new Client to front the band." In July 2011, Holmes introduced Xan Tyler as the new live singer of Client. Both musicians