Black Eyed Peas musician is impressed by President Barack Obama’s authenticity.

The star is currently in Washington D.C. celebrating Inauguration Day with a host of other celebrities including Katy Perry, Kelly Clarkson and Beyoncé Knowles.

Whenever Will has conversed with President Obama, the head of state is fully receptive and gregarious.

"I think people know a lot about him. He ain't a ninja — I mean, he's my ninja — but he's not invisible," Will explained to MTV News.

"He's a lot like how you see him. He's cool and fun but serious at the same time. He's approachable, he's kind, aware... attentive when you're speaking to him. He takes his time to speak to normal folk and important folk at the same."

Will has high aspirations for America’s future.

He hopes that President Obama will focus on improving citizens’ lives.

"What I want to see happen is science programmes getting funded in every single high school and junior high school, so when Obama is not president, those programmes are still going and successful," he said.

"I'd like to see Apple and Dell factories be brought to the inner cities; in every project in America, there's some factory there, and it's abandoned, and I'd like to see those factories open and bring jobs to America."