It's confirmed like a Don King perm (yeah, HA)
You got ya boy E-40, you got Kanye West
{IT'S ICE CUBE NIGGA!!}

from E-40 (Ft. Ice Cube & Kanye West) – Tell Me When to Go (Remix) Lyrics on Rap Genius

Meaning

Don King was a boxing promoter who had an outstanding hairstyle which never seemed to change. Much like that hair-do was confirmed to stay, 40 confirmed the two legends on this track.

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