TMZ: Clay Aiken Impregnates David Foster's Sister

Clay Aiken Impregnates Someone! (TMZ)

TMZ has learned Clay Aiken is going to be a daddy. In case you didn't process that, Clay Aiken is going to be a daddy.

We're told Foster was artificially inseminated. But Clay is a lot more than sperm -- we're told he will have an active role in raising the child.

*shock*