New York City streets turned into an impromptu stage when rap legend Eminem was spotted trading bars with his daughter in Manhattan this weekend. Eyewitnesses say the father-daughter duo was casually freestyling near Washington Square Park, drawing a small but hyped crowd of fans who couldn’t believe their luck.

While Eminem (real name Marshall Mathers) is famously private about his family, this rare public rap session with his daughter—whose identity he’s kept largely out of the spotlight—hints that hip-hop’s most iconic flow might run in the family. Onlookers described her delivery as “smooth but fierce,” with Em visibly proud as he nodded along to her verses.

This isn’t the first time Slim Shady has involved his kids in his craft—he’s referenced fatherhood in tracks like “Hailie’s Song”—but it is the first time they’ve been caught spitting fire together IRL. Fans are now speculating: Could this be a tease for a collab? Or just a legendary dad teaching the next generation how to own the mic?