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
21 (Omarion album) 21 (Omarion album) 21 is the second studio album by American R&B singer Omarion. It was released on December 26, 2006, by Epic Records and Sony Urban Music. The album was produced by Timbaland, The Neptunes, Eric Hudson and Bryan-Michael Cox and saw Omarion co-write every song on the album. The album's title was inspired from when Omarion turned 21 years old months before the album's release. "21" received mildly positive reviews from critics, who saw it as an improvement over his debut record "O" (2005). The album debuted at number one on the US "Billboard" 200, selling 119,000 copies