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
TQ (singer) On March 23, 2009, TQ released the S.E.X.Y. EP on iTunes. It was made available on CD on June 30. The EP consists of previously unheard TQ material. TQ released his next album, titled "Kind of Blue", on March 23, 2010. TQ recorded the Michael Jackson song Dirty Diana for the album. After a European tour in summer 2010, he co-wrote and recorded "Uh Oh", a pop duet with the British singer-songwriter, Danielle Senior. It was released April 2011. Remixes of "Uh Oh" include the classic soul version by CBKS. On February 12, 2013, TQ released Legendary, as the follow-up