Hip-hop icon Dr. DrE surprised graduating students at the University of Southern California on Friday (17May13) by making an unannounced appearance at their commencement ceremony.

The Still D.R.E. hitmaker's pal and business partner, Interscope Records boss Jimmy Iovine, delivered the commencement speech to the class of 2013 after receiving his own honorary degree, and he had a special guest join him onstage to celebrate.

Introducing Dre, Iovine said, "Walking around Usc today, it seems like everyone's a doctor, which is funny 'cause I brought my partner here today, who also happens to be a doctor. So, in the words of the great Slim Shady (Eminem), will the real Dr. Dre please stand up and join me on stage?"

Stepping up to the podium, the rapper referenced the school's athletic teams as he told the students: "I am excited and I am proud to now be a member of the Trojan family. I would also like to say congratulations to the University of Southern California's Class of 2013."

Dre and Iovine's appearance at the Usc graduation came just days after they announced plans to donate $70 million (£45 million) to the school to fund the establishment of the Jimmy Iovine and Andre Young Academy for Arts, Technology and the Business of Innovation, which will provide four-year programs for students starting next year (14).