"When we started thinking about casting, we thought, 'Who was interested in the world of art? Who is contemporary in the world of Selena's?'" showrunner John Hoffman told UK's Metro on June 22. "And then it was pretty quick to realize this is an old friendship they share, Cara and Selena, and we talked to Selena about it and she said, 'That would be a dream, I love her.'"
The pair met when Gomez was around 16. They were spotted vacationing together in Saint-Tropez in 2014, and both starred in Taylor Swift's "Bad Blood" video in 2015. Their friendship has continued over the years. In December 2021, the pair got matching rosebud tattoos.