: Includes the "This Is MIRROR" and "One & All" collections.
: Achieved significant recognition with "Master Class" and was named one of Variety's International Breakout Stars in 2021. : Includes the "This Is MIRROR" and "One & All" collections
: A Christmas-themed single released at the end of the year. Solo Hits from Members in 2021 : Includes the "This Is MIRROR" and "One & All" collections
: A chart-topping dance-pop track produced by K-pop hitmaker Hwan Yang, released in March 2021. : Includes the "This Is MIRROR" and "One & All" collections
: Released the viral hit "Megahit" , which became a cultural phenomenon.
Individual members also saw massive success with solo tracks that are often included in fan-made "main hits" collections:
: Lists top group and individual singles from 2021.