The NFL star's foundation hosted a Mother's Day wellness event on May 9. Stefon Diggs and Cardi B celebrate after Game Four of the Eastern Conference Second Round NBA Playoffs between the Boston Celtics and the New York Knicks at Madison Square Garden on May 12, 2025, in New York City. Elsa/Getty Images Trending on Billboard Cardi B and Stefon Diggs sparked reconciliation rumors over the weekend when the Grammy-winning rapper pulled up to the NFL star’s Diggs Deep Foundation’s Mother’s Day event on Saturday (May 9). Clips of Cardi and Diggs hanging out and posing for photos together went viral on social media. The pair’s relationship status isn’t currently known, but they looked happy as Cardi rocked a brown midiskirt and Diggs went with a pink hoodie that was emblazoned with “I [Heart] Home.” The Bronx native and Diggs even packed on the PDA while the NFL player planted a kiss on his baby mother’s head at the Washington, D.C., event, according to a video shared on X by reporter Kelsey Nicole Nelson.…