06/29/2011 at 09:00 AM EDT
Ain't nothing getting this doggy down!
"Penny is happy 24/7," Tweeted
of Tuesday's #cutepic winner. "She is pure cuteness inside and out!" We couldn't agree more! Do you have the world's cutest pet? Tweet photos of your furball by 5 p.m. ET marked #cutepic at @PEOPLEPets to play.