Looks like he's got some super sperm!
According to a new report, Diplo knocked up his ex-girlfriend and baby momma Kathryn Lockhart right before he started seeing Katy!
The two already have an adorable four-year-old son Lockett, so this would be their second child.
And the baby is due soon!!!
Perry was just seen in Las Vegas with Diplo, so maybe they're squeezing in some QT before he takes off to welcome his new baby into the world!
Hopefully none of this puts a damper on Katy's birthday weekend though!