Prominent and influential celebrities are making an effort to change the flag of Mississippi. The group is asking the state to remove the emblem of the Confederate Battle Flag.

As part of their effort to raise awareness on the particular political issue, the group calling for the change, published a full-page advertisement in the Mississippi Clarion Ledger on Sunday.

The advertisement bears the following letter:

“It is simply not fair, or honorable, to ask black Mississippians to attend schools, compete in athletic events, work in the public sector, serve in the National Guard, and go about their normal lives with a state flag that glorifies a war fought to keep their ancestors enslaved,” reads the letter. “It’s time for Mississippi to fly a flag for all its people.”

Morgan Freeman says it is time to remove Confederate emblem from Mississippi flag http://t.co/mlGNg72p8x pic.twitter.com/7SoljfhRRr

— Independent US (@IndyUSA) August 18, 2015

It was signed by John Grisham, Morgan Freeman, Jimmy Buffet and Archie Manning. Some 60 other people are joining the group including business and cultural personalities.

Aside from celebrities, bikers from the whole Mississippi came together in the state’s capital, Jackson, on Sunday, supporting the cause.

The call to remove the Confederate emblem has gained support from Mississipi politicians. House Speaker Philip Gunn expressed support for the anti-Confederate flag advocates. The great-great-grandson of Confederate President Jefferson Davis also deemed it important to remove the symbol.

Also expressing support are Mississippi’s U.S. Senators Thad Cochran and Roger Wicker, author Kathryn Stockett and Hollywood producer Glen Ballard.

Other states have already removed the confederate emblem since the killing of nine black church members in South Carolina. The accused, Dylan Roof had appeared in photos showing the confederate flag. The incident caused the lawmakers in South Carolina to permanently remove the Confederate flag from the Statehouse.

Back in 2001, removing the Confederate symbol from the flag was a major challenge. Today, the letter proved that time changed the people and the meaning behind the flag.