That's when Ghostface said it on the purple tape
Bad Boy biting Nas album cover way

from Nas – Last Real Nigga Alive Lyrics on Rap Genius

Meaning

The purple tape is Raekwon’s Only Built 4 Cuban Linx album, which was famously released on purple cassette. In the “Shark Niggas” interlude, Ghostface accused Biggie of copying Illmatic’s album cover concept for Ready To Die. Both featured childhood photos.

A valid criticism even though the baby on Biggie’s cover was not actually him.

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