Just saying every one does it take hip hop points from Eminem, kool Keith, and heard bone thugs did it at a show some rappers read there lyrics off teleprompters and hear their vocals in their ear phones some cause rappers lose their voice and still have to go and do shows but hey nobody speaks on that he’ll Tyler freestyles his verse when he fucked up then he rapped over his old songs so and if you do a show they still could boo you just like people could call you trash for stumbling your freestyles just saying plus people put their back track so low that you can barely hear it