It's become fairly commonplace for rappers to pay tribute to their hometown sports teams, some tributes being more obvious than others. For instance, Wiz Khalifa's "Black & Yellow", which is now something of an official theme for the Pittsburgh Steelers, was not necessarily intended as such, written about the colors of Khalifa's car.
While Phenom's "Royal" works outside of the team concept, the parenthetical title suggests that this one is meant to be recited from the bleachers.
The last we heard from Irv was back in February with the almost entirely sung, "Venting (Freestyle)". Look out for more from him soon.
I'm royal and you know it
True blue, what it do? gotta show it
I be geared up all the way from the floor
This is Kan City, homeboy I thought I told ya