What would you ask Barack Obama if you had the opportunity?

Think fast — because that opportunity is here!

MTV will be speaking with the Democratic presidential candidate Saturday morning, and we want you to give us the questions. Upload your video or written question to YouRHere.MTV.com, we'll take the best ones to Senator Obama, and we'll broadcast his answers on "Ask Obama," a special airing Monday (November 3) on MTV at 9 a.m. and 7 p.m., and on MTV Tr3s at 3:30 p.m. and 6:30 p.m.

But that's not all — be sure to check your e-mail in the coming days, because if your question is chosen, we'll want to know your reaction to his answer. We'll broadcast your response to his answer on-air and/or online Sunday night and Monday.

MTV News extended the same offer to Republican candidate John McCain, but he declined. However, both Senators McCain and Obama participated in our "Presidential Dialogues" last year, where they fielded a wide variety of tough questions from college-age audiences.

Senator Obama also participated in our "Closing Arguments" forum in February, and we also caught up with him in North Carolina late last month.

In that interview, Obama talked about everything from McCain's attacks on him to ways in which the current economic crisis could affect young people in the job market.

"If we don't do it, it will have an impact on everybody, especially the next generation, because if the economy slows down, they're the ones who are going to have the toughest time finding a job," he said. MTV News' Sway even got in a few questions about hip-hop.

So what do you want to know? Head over to YourRHere.MTV.com and make your voice heard!