Credit: Andy Sheppard/Getty Images In 2009, just over a year after releasing her debut ... the 'difficult second album' myth But while 21 sealed Adele's status as one of the biggest artists ...

âÄù (two years have passed.) reaches towards a new level of maturity, both in the structure of the music and in the self-assurance projected by someone whoâÄôs old enough to drink in an American bar.