This just in (again): Avril Lavigne is not pregnant.

But the 23-year-old Napanee, Ont., native said she and her husband Deryck Whibley of Sum 41 recently stoked the flames of those persistent pregnancy rumours by hooking up with Ashton Kutcher for his new show, Pop Fiction, which just debuted this past weekend in the U.S. Lavigne put on a fat suit and went shopping with Whibley in Beverly Hills to trick the paparazzi into covering a staged celebrity story the premise of Pop Fiction in this case, that she was with child.

Its kind of like punking or spoofing the media," Lavigne said down the line from a tour stop in Edmonton.

And it was their first episode and they asked us to do it and so we just kind of ran with the baby rumour. (Pop Fiction has) like their camera crews embedded in the paparazzi, so we went on Robertson Boulevard for literally like 45 minutes, went to two baby stores, Baby Kitson and Lisa Kline Kids, and then it was everywhere. It was confirmed that I was pregnant. It was crazy. And the show is great because it shows the viewer how out of control the rumours are, how quickly things get spread and its funny.

More on the story: HERE

LINK TO VIDEOS OF THE ACTUAL PRANK!!!