His first new music since 2016, Ye Vs The People, sees West say: “I know Obama was heaven-sent but ever since Trump won, it proved that I could be president.”
West raised eyebrows on Wednesday when he sent a flurry of tweets criticising former president Mr Obama and supporting his “brother” Mr Trump.
“You don’t have to agree with trump [sic] but the mob can’t make me not love him. We are both dragon energy,” West wrote.
“He is my brother. I love everyone. I don’t agree with everything anyone does. That’s what makes us individuals. And we have the right to independent thought.”
The new song was aired on Los Angeles hip-hop station Power 106 FM on Friday night.
Ye Vs The People, featuring rapper TI, also includes the lyrics: “See that’s the problem with this damn nation, all blacks gotta be Democrats, man we ain’t even made it off the plantation.”
West, who earlier tweeted a picture of a signed hat expressing Mr Trump’s slogan Make America Great Again, raps in the song: “I never, ever stop fighting for the people, actually wearing a hat to show people that we equal.”
He teased more music on Twitter, linking to a song called Lift Yourself on his website.
The unusual song caused confusion among fans, who were unsure whether the track – featuring lyrics sounding like “scooptity doop, scoop dadee doop, scoop dadadi poop” – is genuine or a joke.
Representatives for the rapper have so far not responded to a request for clarity.