Rapper Eminem will join former President Barack Obama tonight at a rally in his home state of Michigan for Vice President Kamala Harris. The rapper is not expected to perform but will reportedly welcome Obama and speak about the presidential race.

Eminem will join the Democratic campaign trail to introduce Barack Obama at a Kamala Harris rally in Detroit tonight, CNN reports. Eminem, a vocal critic of Vice President Harris’ opponent in the presidential race, is expected to speak, rather than perform, at the rally, according to CNN sources.

The Harris campaign already is promoting a contest to win two tickets to see a surprise performer at a get-out-the-vote concert, with the silohetted figure of a female singer. Taylor Swift has endorsed Harris’ campaign, and Beyonce has lent the use of her song, Freedom .