To help highligh racial inequalty the popular country band Dixie Chicks changed their name to The Chicks. Dixie is derived from Jeremiah Dixon who would survey the border between Maryland and Pennsylvania which separated free and slave states. The border line was known as the Mason-Dixon line. Nowadays Dixie is more of a cultural referrence that designates all the Southern United States.
The Texas trio revealed the change while releasing a protest song called March March
Check out our post about Quaker's Aunt Jemima brand which also rebranded.