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
Rossa (singer) for album "Harmoni Jalinan Nada & Cerita. October 11, 2011. Rossa held her own concert outside of Indonesia, in Esplanade, Singapore. The concert was entitled "Harmoni Cinta." At this concert, Rossa launched her new single, "Aku Bersahaja" which was sung together with "Taufik Batisah." This concert was attended by 1,800 fans. At the end of 2011, Rossa released an album entitled "The Best of Rossa" in Indonesia, with 3 popular songs; "Jangan Ada Dusta Diantara Kita" ft. Broery Marantika, "Tak Sanggup Lagi", and "One Night Lover" ft. Joe Flizzow. 2 more songs were added to this album for the international