Months after Kanye West publicly disrespected the kids of his former friends Jay-Z and Beyoncé, it appears Jay-Z has fired back at his ex-collaborator. While hitting the stage alongside Beyoncé during her “Cowboy Carter” show in Paris on Sunday,

West tweeted about the couple’s 8-year-old twins, Sir and Rumi, in March. The “Stronger” rapper expressed regret — only to walk that back.

On Sunday, June 22, Jay-Z made a surprise appearance alongside his wife during her final show at Stade de France in Paris. According to the New York Post, the couple performed “Crazy in Love” and “Drunk in Love,” which they remixed with “Partition" during the show.