Chester Hanks, son of actor Tom Hanks, was widely criticized in June for using the n-word in social media posts.
According to the petition, Michelle Duggar's voice can be heard on a recorded call from summer 2014 urging the citizens of Fayetteville, Arkansas, to vote to repeal a law that forbids business owners and landlords from evicting and firing people based on gender identity.
Demands to cancel the show gained fervor in May after a magazine reported that as a teen, Josh Duggar molested five girls, including four of his sisters.
Charles Barkley's mouth landed the former NBA star in the middle of controversy in October.
"We got Bruce Jenner, who will be doing some musical performances.
He's doing a his-and-her duet all by himself."Canadian singer-songwriter Joni Mitchell, center, told New York magazine in 2015 that she's appeared as a black man on one of her album covers.
In two videos that surfaced in June 2014, a younger Bieber can be seen using the "N" word on two separate occasions -- instances that he says were the result of his own ignorance.