Demi Lovato turned out in a sexy leather pencil skirt and heels for an appearance on Extra today. And she brought along the cutest accessory EVER! Her sweet, fluffy white pooch, Buddy.

The four-legged fluffball was a recent Christmas present -- and it seems like Lovato's really taken to him. How could she not love an adorable guy like that?!

But Demi was there to talk about something a bit more serious ... and personal. Just last week she posted a Kim Kardashian style bikini pic, pointing out a lack of the infamous "thigh gap" that's all the rage these days. Along with the snap, the "Heart Attack" singer wrote, "Regardless of what society tells you these days... You don't have to have a thigh gap to be beautiful. It is possible to love your body the way it is. #fitness #health #acceptance#selflove." Having admitted to dealing with body issues herself, Demi is a vocal advocate for positive body image for girls and she's taking a leap by putting herself out there in the public eye and on social media to support girls who struggle with their looks. Hats off to you, Demi!