Just before she went on, she post a selfie on Instagram to show off her sparkling eyelids, captioning it, "Star Spangled Red-Slipper eyes!... acting real silly today!!"
It's a big season for Gaga, including a Golden Globe win for her performance on "American Horror Story: Hotel," and her nomination for Best Original Song at the Oscars, the latter of which she is also favored to win. She will next be seen performing a tribute to the late David Bowie at the Grammys.
Gaga is expected to release her first new album since 2014's "Artpop" sometime later this year.