“MC’s Act Like They Don’t Know” is the lead single from KRS-One’s 1995 sophomore album. It is one of his five trips to the top 10 on the US Rap Chart, and his biggest pop crossover success, reaching #57 on the Hot 100 that September.

It contains production from DJ Premier that samples “Yesterdays” by Clifford Brown, and interpolates “The Breaks” by Kurtis Blow. Its lyrics address how many rappers who achieve chart success and various awards cannot perform well live.