allegretto is the name of the song. if you are wondering who plays the upbeat version in the commercials it is a group called bond.
She is a toy yorkie called 'Zoey' From the Le Paws agency. You can see here here: http://www.lepawsagency.com/html/talentdetail.asp?id=14&name=ZOE&s=small
Diane Luby Lane, she's also in a funny Travelocity commercial with a jackhammer
3 Doors Down - Let Me Be Myself
Karolina Wydra