50 Cent says he was impressed with Obama's speech on race.

(CNN) – Hillary Clinton appears to have lost a high-profile backer to rival Barack Obama.

Rapper 50 Cent, who told Time magazine last September he was supporting the New York senator's White House bid, now says he has decided to shift his allegiance to Obama.

The multi-platinum star, born Curtis Jackson, told MTV News Friday that Obama's recent speech on race was the deciding factor for his decision.

"I heard Obama speak," he said. "He hit me with that he-just-got-done-watching-'Malcolm X,' and I swear to God, I'm like, 'Yo, Obama!'

"I'm Obama to the end now, baby!"

But the musician also admitted he's lost interest in the protracted Democratic race, and may not support either candidate.

"To be honest, I haven't been following that anymore. I lost my interest," he said. "I listened to some of the debates and things that they were saying, and I just got lost in everything that was going on…Don't look for my vote, for me to determine nothing on that. Just say, '50 Cent, he don't know, so don't ask Fiddy.'

He also said he didn't think the country is ready for a black president.

"I just think there's people that might not be ready for an African-American president," he said. "It'll be an issue, believe it or not."

"You've got to be conscious of racism, period," he continued. "And it's still there. We don't deal with it as often as my grandparents did. My grandparents grew up in South Carolina, so they experienced the heart of that."