A$AP Rocky has readily admitted that the first person to put him on before anyone else was Drake. Even before the Club Paradise tour that Rocky opened, Drake brought out the then-up-and-comer on stage during his DJ set at a Fashion's Night Out event. And while the A$AP Mob were relatively well known on the Internet, it wasn't until they were handpicked by Drizzy himself to open Club Paradise that they broke through to the mainstream.
In October 2012, Drake hopped on Rocky's "Fuckin' Problems" along with Kendrick Lamar and 2 Chainz. The track was produced by Noah "40" Shebib, making it clear that the track was originally intended for Drake. Thankfully Rocky never forgets Drake's role in his success as an artist, and sings his praises in just about every interview he gives.