Country singer John Rich blasted Clay Aiken as "racist" and "idiotic" for a tweet the "American Idol" alum sent out about the Republican National Convention, referencing the lack of African-American attendees in Tampa and the alcohol-free lifestyle of Mormons.

On Tuesday evening, while watching the convention, Aiken tweeted about an RNC-themed drinking game he was playing with his family.

Clay Aiken
Playing drinking game with my brother now. We drink every time we see a black person on screen at the RNC convention.

Rich, a Republican, quickly fired off multiple responses to Aiken:

John Rich
"@clayaiken:@cowboytroy We drink every time we see a black person at the RNC//CLAY! You should be ashamed for racist comments like THAT!WOW.

John Rich
I wonder how long it will be till takes that idiotic post down. Clay, you're better than that...I hope. Sincerely, JR.

John Rich
And to finish it off, hashtags soberasamormon? I thought your charity was for inclusion, not EXCLUSION. What happened?

John Rich
Between the hashtag "negrospotting" and what I've read ever since, I've just had enough of this racist nonsense. It's sick. PLS STOP.

Rich and Aiken both participated on Donald Trump's "The Celebrity Apprentice." Aiken placed as the runner-up earlier this year and played for his charity the National Inclusion Project, according to the Hollywood Reporter. Rich, who is part of the country duo Big & Rich, won the 2011 season and played for St. Jude Children's Research Hospital.

THR also noted that Rich came back during the most recent season to interview the final four and offer his recommendations to Trump. Rich interviewed Aiken, who eventually lost to Arsenio Hall, during this segment.

Aiken fired back at Rich's comments about "inclusion" and "exclusion."

Clay Aiken
My charity is. Why isn't your party? ;-) : I thought your charity was for inclusion, not EXCLUSION. What happened?

Aiken has spoken out in support of President Obama and his stance on gay marriage.

In 2008, Aiken came out as gay to People magazine. Aiken, a Born-Again Christian from North Carolina, said that he owed it to his son to reveal the truth. "I cannot raise a child to lie or to hide things. I wasn't raised that way, and I'm not going to raise a child to do that," he said at the time.

The singer went to bat for the president during an interview with Tony Perkins, president of the conservative Christian organization Family Research Council. Perkins believed that Obama's support of same-sex marriage would give Republicans a boost, but Aiken disagreed, according to CBS News.

"I think the people who say it will matter on either side of the equation, probably were not going to vote for Obama or were going to vote for President Obama anyway," he said, adding that gay men and women will be more energized to support Obama now.

Check out celebrity reactions to Obama's announcement below:

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  • Alec Baldwin

  • Donald J. Trump

  • Neil Patrick Harris

  • Kim Kardashian

  • Jesse Tyler Ferguson

  • Ross Mathews

  • Andy Cohen

  • Russell Simmons

  • Sandra Bernhard

  • Michelle Branch

  • Debi Mazar

  • Audra McDonald

  • Eliza Dushku

  • Patton Oswalt

  • josh groban

  • Rachel Zoe

  • Perez Hilton

  • Jane Lynch

  • Lynda Carter

  • Fran Drescher

  • Dianna Agron

  • Ellen DeGeneres

  • Chris Colfer

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