Without Derrick Rose there would be no song named D Rose, and thus no Gucci Gang.
Also D Rose was definitely what got that kid famous. Gucci Gang was just his terrible follow up
"Pump's big breakthrough arrived in 2017 with the explosion of his single "Gucci Gang," which rose to the Top Three of the Hot 100 by the end of the year and was certified triple platinum. He issued his debut mixtape, Lil Pump, in October, featuring appearances by Smokepurpp, Gucci Mane, Lil Yachty, and more."
Don't think D-Rose even made Top 100 songs.
D Rose was his first hit and what got him noticed in the rap game, doesn't sound like you even heard of Pump until Gucci Gang..
Key word "Noticed" yeah D Rose got him noticed and stepped him forward in his rapping career. But Gucci Gang is what got him popular.
Also i'm positive D Rose Came out in early 2017. Elementary, Ignorant and DrumStick came out in 2016.
