Lets be honest tho. Adele has really only been in the public's eye since 2011. The world literally paid her first album dust. It sold well on its own no doubt. But it also gained a hugh amount of attention with the success of 21. Much like it did with the success of 25. Both 21 and 19 shot back up on Billboard charts. She's been in music since 08. But be real how many people actually knew her during the years of 08, 09 and 10? I still love Adele im just not blinded by her sales. She will become a legend eventually, just not right now.