I swear this famous shit just happened overnight

from A$AP Rocky – Suddenly Lyrics on Rap Genius

Meaning

Rocky’s rise was meteoric, after only dropping one incredibly popular mixtape and touring with Drake on the Club Paradise Tour, Rocky was pushed into the limelight in less than a year.

At 43 seconds in this video, Rocky talks about this song & this line.
http://www.youtube.com/watch?v=DKXpbkQOglc

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