Sour Puss is the Littlest Pet Shop animated short.
The story begins in the Pet Jet. The pets meet a grumpy looking cat and try to make him/her smile.
The Pets Looking at the Grumpy Cat
Whoa Blythe! What was That Sound?
Somebody is Being Grumpy Today
Uh Oh! It's Raining in the Pet Jet!
Vinnie's Crazy Hair Day Face
The Pets Doing There Ballet Dance