President Obama and Rosie O’Donnell have all come under fire from Donald Trump. And now the outspoken real estate magnate is taking aim at Mac Miller for using his name on his hit song.

Trump called out the 21-year-old rapper on Twitter. “Little @MacMiller sent me an expensive plaque for making his song ‘Donald Trump’ such a big hit. Mac, you still don’t have the right to use my name,” tweeted “The Apprentice” boss, who posted a photo of the plaque.

The track, which originally appeared on Mac’s 2011 mixtape Best Day Ever, was released as a single to iTunes. But the accolades weren’t enough to satisfy Trump, who is now demanding that he get a cut of the sales.

“Little @MacMiller, I want the money not the plaque you gave me!” he insisted. “You illegally used my name for your song ‘Donald Trump’ which now has over 75 million hits.”

He even threatened legal action. “Little @MacMiller, I’m now going to teach you a big boy lesson about lawsuits and finance. You ungrateful dog!”

The jabs kept coming. “Little @MacMiller—I have more hair than you do and there’s a slight age difference,” taunted the 66-year-old Trump.

As of press time, Mac had not responded. However, in the past, he acknowledged that Trump was aware of the song.

“I was just excited that I reached the level where someone like that, I’m on their radar,” he told Hard Knock TV. “He definitely thinks that he’s the coolest man in hip-hop right now. He’s like 20 million views… He’s like, ‘I’m pretty proud of that.'”

Donald Trump Speaks on Mac Miller in 2011