What kind of test did fan Maria Yeater request of Justin Bieber in 2011?

The test Maria Yeater requested of Justin Bieber in 2011 was a paternity test.

Yeater claimed that Bieber was the father of her infant son after an alleged backstage encounter following one of his concerts. Bieber was 17 at the time, and the allegation quickly became a major entertainment-news story. A paternity test uses genetic markers from a child and an alleged parent to determine biological relatedness; it is not the same as a pregnancy test or a general DNA screening.

Bieber’s representatives denied the claim, and he reportedly agreed to take a DNA test to disprove it. Yeater later withdrew her paternity lawsuit, and the controversy faded from the headlines. The episode is sometimes confused with later celebrity DNA stories, but the 2011 dispute specifically concerned whether Bieber had fathered Yeater’s child.