4 Plugs is the sixth album by the Mad Capsule Markets.

The album has been known as a turning point in the band's career as it was a departure from the original melodic Japanese rock and punk sound to a more rap metal-based style.

The melodious elements heard on Mix-ism and Park are largely gone, the sole exception being "Normal Life", replaced by aggressive and heavy beats.

Most fans welcomed this newer sound and style, and the band attracted a new fanbase, but some fans of their earlier sound felt disappointed with their new direction.

[1][2][3][4] This album also featured almost fully English songs such as "Walk!"