um.

Clay Aiken is going to be a father, PEOPLE has confirmed.

"The story is true,” Bill Vigars, a Vancouver-based rep for David Foster, told PEOPLE Wednesday, of the TMZ.com report that Aiken, 29, impregnated David's sister, music producer Jaymes Foster. "It is true Clay is the father. She was artificially inseminated by Clay. She's due in August."

Vigars added of Aiken and Foster, "They have been friends ever since American Idol, when they worked together."