Barack Obama, the first Black president, is coming to Detroit to encourage voters to back the vice president in the Nov. 5 election.

Eminem made brief remarks at a Kamala Harris rally in Detroit on Tuesday evening, talking about the fear of retribution people have for expressing their opinion, and his belief that Harris would protect freedom of speech as President.

Barack Obama only got one shot to follow up Eminem — and he didn’t blow that opportunity. When the rapper introduced the former president at a Detroit rally for Kamala Harris on October 22, it was Obama who was feeling starstruck.