Rockford, Illinois native Casso Laster (@CassoLaster) breaks some creative ground with his new single “Stay Focused”. Teaming up with Chicago Rapper Boss Blaze, Casso and Blaze give you a perfect balance of melody and lyrics. On the track produced by Rio Mac of Hustle Squad Productions, Casso shows us why his refreshing lyricism and poetic approach have him as an indie favorite coming out Illinois. Signed to independent Powerhouse F.U.P. MOB MUSIC GROUP through his own independent imprint LBM Music Group, Casso is more than just a rapper. The multi-talented artist is also a songwriter and clothing designer, all of the clothes worn in the visual for “Stay Focused” were…