"Dumb &amp; Dumber" is the first Japanese song by South Korean boy group iKon. The single was released by YGEX on September 9, 2016. The single has three B-side songs, "#WYD" and "Sinosijak (Remix)" with a new song "Love Me".
Commercial performance.
The song debuted at number one on Japan's official chart Oricon Singles Chart with 48,749 physical copies sold in the first week, while on Billboard Japan, the song debuted also at number one on "Japan Hot 100" and "Hot Single Sales" with total 114,653 on the first week.
In "Oricon" singles year end chart, the song charted in No.93 selling 60,887.
References.
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