A civil rights activist who was one of the first children of color to integrate into a school where everyone was white in the United States has taken over Selena Gomez's Instagram account.
Ruby Bridges shared archival footage from the out-of-school protests that followed in Louisiana in the 1960s.
She also called on nearly 180 million followers of the singer to stay together in the "fight to save the lives of people of color."
Gomez is one of the most followed celebrities on Instagram.
Gomez has submitted her social media account to color leaders and activists to highlight their work.
The decision follows repeated anti-racist attacks across the United States, sparked by the death of George Floyd on May 25.
These protests have also led to wider discussions about race, racism and police in the United States.
Ms Bridges told Gomez's followers on Sunday that she was sharing archival footage from William Frantz Elementary School in New Orleans in 1960 because "it will help you understand why I think we, sisters and brothers of color, we must stand united in this fight to save lives 'black and brown' ".
The footage is a two-minute excerpt from the documentary "Children were watching," which takes a look at the early days of school integration in New Orleans.
She describes the chaos faced by Daisy Gabrielle, a mother who opposed the protests and brought her white daughter, Yolanda, to the newly integrated school when most white parents were keeping their children away.
"It was important for me to tell the world every story," Ms. Bridges wrote in an Instagram post.
Who is Ruby Bridges?
Mrs. Bridges was only six years old in November 1960, when she became one of the first children of color to go to a school with white children in the southern United States.
While the U.S. Supreme Court has already completed racial segregation in public schools in 1954, it faced resistance in several states, including Louisiana.
In 1960 public schools in New Orleans were forced to integrate students of color.
Ms. Bridges was protected daily by police when she attended first grade. She was the only student of color and faced angry crowds outside William Frantz Elementary School near her home.
Only one teacher was willing to accept the young girl and she spent the year as a single student.
Her experience inspired a famous painting by American artist Norman Rockwell, which was temporarily hung in the White House by then-President Barack Obama.
"The girl in that picture, six years old, knew absolutely nothing about racism - I was going to school that day," she said in 2011.
"But the lesson I learned that year, in an empty school building, was that none of us know anything about not liking the other when we come into the world. It's something that is passed on to us."
