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RNC battle brews between Clay Aiken and John Rich

John Rich, Clay Aiken
CBS/Getty
John Rich, Clay Aiken
CBS/Getty

(CBS News) Things got a little heated between Clay Aiken and John Rich inside the Twitter-verse on Tuesday night.

The two singers apparently have different tastes in politics, and it played out online Tuesday night.

Read more: Convention star power: Blurring the line between celebrity and politics

Aiken commented about this week's Republican National Convention in a tweet:

That prompted Rich to call Aiken's comments "racist" in a tweet:

Aiken then replied to Rich:

Interestingly enough, both Aiken and Rich have appeared on "The Celebrity Apprentice." Aiken finished second on the most recent season, and Rich won in 2011.