1 (Berryz工房 スッペシャル ベスト Vol.1, Berīzu Kōbō Supesharu Besuto Voryūmu Wan) is the 1st compilation album by the Japanese girl idol group Berryz Kobo, released in Japan on January 14, 2009, on the record label Piccolo Town.

[1][2] The CD appeared less than 2 months before Berryz Kobo's 5th anniversary.

It contained material selected from 18 singles and 6 albums the group had released so far.

All songs on the compilation, except one ("Dschinghis Khan", which is a cover of the German band of the same name), are written and produced by Tsunku.

[3] "Madayade" is the only Berryz Kobo's hit that can't be found on any other their album to date.