Let's take it back to straight hip-hop and start it from scratch
Starting from scratch means to get back to the basics and start over on something (in this case it’s hip-hop that’s starting from scratch).
And since one of the hallmarks of early Hip-Hop was the DJ-ing technique of scratching (moving a vinyl record back and forth) this line also succeeds in giving us an image of what old-school hip-hop used to be like.
In the music video, it cuts to a T-shirt of the Beastie Boys and Run-DMC. Both groups are considered examples of classic hip-hop and employed production from “Berzerk” producer Rick Rubin, who can be seen in the music video. Hence, “taking it back to straight hip hop” is also a reference to this song’s quasi-retro Rick Rubin production.
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