The pop diva was spotted at Kuma's Corner, at 2900 W. Belmont Ave., early Saturday.
The manager said she wore a leather coat, black sunglasses and her signature flowing platinum locks. No crazy hat, no crazy undergarments, according to 312DiningDiva.com.
And if there was any doubt that it was her, Lady Gaga herself confirmed it with a Tweet:
"Just spent the morning at kuma's, judas priest burger and cheap beer, denim +leather, brought us all together."
The Monster Ball hits the Rosemont Theatre through Sunday.