Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Adele ta fitar da kundi na biyu, 21, a ranar 24 ga Janairu 2011 a Burtaniya da 22 ga Fabrairu a Amurka. Ta ce album din ya samo asali ne daga rabuwarta da tsohon abokin aikinta. An bayyana sautin kundin a matsayin kiɗan gargajiya da na zamani da kuma tushen kiɗa. Canjin sautin daga kundi na farko shine sakamakon direban bas dinta yana kunna kiɗan zamani daga Nashville lokacin da take yawon shakatawa a Kudancin Amurka, kuma taken ya nuna ci gaban da ta samu a cikin shekaru biyu da suka gabata. Adele ya gaya wa Spin Magazine: "Abin farin ciki ne a gare ni saboda ban taɓa girma a kusa da [waccan waƙar] ba". 21 ya buga lamba 1 a cikin ƙasashe 30, gami da Burtaniya da Amurka. Wani wasan kwaikwayo na motsin rai na "Wani kamar ku" a 2011 Brit Awards a ranar 15 ga Fabrairu ya tura waƙar zuwa lamba ɗaya a Burtaniya. Ta farko album, 19, sake shiga Birtaniya album ginshiƙi tare da 21, yayin da na farko da na biyu singles "Rolling a cikin Deep" da kuma "Wani kamar ka" sun kasance a saman 5 na Birtaniya singles ginshiƙi, yin Adele na farko da rai artist cimma feat na biyu saman-biyar hits a duka da Official Singles Chart da Official Albums Chart lokaci guda tun The Beatles a 1964. Dukkanin waƙoƙin biyu sun kasance a saman jadawalin a kasuwanni da yawa kuma sun karya rikodin tallace-tallace da yawa. Bayan da ta yi "Wani kamar ku" a 2011 MTV Video Music Awards, ya zama na biyu na Adele na ɗaya a kan Billboard Hot 100. Zuwa Disamba 2011, 21 ya sayar da kwafi sama da miliyan 3.4 a Burtaniya, kuma ya zama kundin da aka fi siyarwa a karni na 21, yana wucewa Amy Winehouse's Back to Black, tare da Adele ta zama mawaƙa ta farko da ta taɓa siyar da kundin miliyan uku a Burtaniya a cikin shekara ɗaya. "Saita Wuta zuwa Ruwan sama" ya zama na uku na Adele na ɗaya a kan Billboard Hot 100, kamar yadda Adele ya zama mai zane na farko da ya taɓa samun kundi, 21, ya riƙe matsayi na ɗaya a kan Billboard 200 a lokaci guda tare da nau'i uku na ɗaya. Bugu da ƙari, 21 yana da mafi yawan makonni a kan Billboard 200 ginshiƙi na kowane album da wata mace. Don inganta album, Adele ya shiga...  Tambaya: Wanene ya yi wahayi zuwa ga kundi na biyu na Adele?
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