Last Monday, the rapper gave Romney what seemed to be an expletive-filled endorsement in a Lil Wayne song. Obama was clearly aware of the song, acknowledging "a little rap that said that" but casting doubt on headlines that Minaj actually endorsed the GOP nominee.

"I don’t know what’s going on there," he told “The Obie & Lil’ Shawn Show” on Orlando radio station Power 95.3.

Minaj has stayed mum on the endorsement question ever since the song's release, despite reported death threats on Twitter and plenty of reporters calling her agents. 

“I’m a Republican voting for Mitt Romney, you lazy bitches are f--king up the economy,” she rapped on "Mercy," the fifth track on Lil Wayne's "Dedication 4" album.

Obama claimed in the interview that his two daughters are "now hipper than me," but he was correct that Minaj plays "characters" in her music. She created the alter ego "Roman Zolanski" for her 2010 album "Pink Friday."

He said Sasha and Malia Obama are not into Nicki Minaj, but he has some hip-hop on his iPod. He recently appeared, via taped cameo, at a Jay-Z concert.