Madonna and her daughter on tour of Michigan University

Madonna and her 17-year-old daughter, Lourdes Leon
caused quite a frenzy on Twitter, and presumably on campus as well, when they were spotted touring the University of Michigan on Wednesday, Nov. 20.

Many students tweeted sightings of the mother-daughter duo around the Ann Arbor college grounds. "I Just saw THE Madonna at Umich! #nobigdeal," one student tweeted. "Casual celebrity spotting on campus #Madonna" one fan said on the social networking site. "I'm not kidding.... Madonna is here... And she's in the music deans office... ***debates skipping voice lesson to stalk her*****" another student wrote