*This is so cold-blooded. Straight up. And to think the prank was pulled off by her own son.

He needs his ass whupped!

Here’s how it all went down. The manager at Park Avenue Health & Wellness Center in Pomona told reporters one of his staff members had just won the Powerball.

And according to David Levy, who is an administrator at the facility, everybody was on high; celebrating like crazy after the woman received a call from her son saying she was the winner.

The son even sent a picture of the alleged winning ticket, Levy said. Pardon the pun, but the “poor woman” went home thinking she was a member of the 1 percent — only to find out her son had pulled a prank on her, the daughter said.

Read more at EURThisNthat.