There are many reasons why we just can't get enough of Taylor Momsen's pooch, Petal! For starters, you know that T-Moms' pet dog has been on-set of the now-defunct Gossip Girl as well as traveled on tour with her rock band The Pretty Reckless. There's no doubt Petal has been living the life. (Jealz!) Also, with a name like Petal - meant to rhyme with metal - she definitely rocks!