Justin Bieber addresses paternity case on “The Late Show”

Yeater is a 20-year-old woman who claims the contrary, and according to her lawyer, has announced her intention to submit her son to the same type of test.

Invited to “The Late Show,” he told the show host that he had taken the paternity test, explaining that the test doctors had to take a sample of his saliva.

“And you were man enough in the beginning. You said, ‘Oh yeah? That’s not true and I’ll take one of those DNA tests. Did you take one of those things?’” David Letterman said.

“Yeah, I took it. They just swab your mouth,” Bieber responded.

Mariah Yeater claimed she had sex with Justin Bieber after one of his concerts and insisted the singer is the father of her child.