 Diamandis went on her first headlining tour to promote the album , performing in Europe , North America and Australia . <unk> included the Glastonbury Festival 2010 , South by Southwest and the Falls Festival . In parallel to headlining her own tour in the United States in mid @-@ 2011 , she was an opening act for Katy Perry 's California Dreams Tour , and finished by opening for Coldplay 's <unk> <unk> Tour at the Manchester Arena that December . 
