Go ahead and take sides in the heartbreak of celebrities. Kitson will help you. The Los Angeles boutique’s “Team Aniston” T-shirt is a hot seller after being mentioned in the Vanity Fair article in which Jennifer Aniston vented about wayward husband Brad Pitt. There is also the “Team Sienna” T-shirt, supporting Sienna Miller, cheated on by fiancé Jude Law. Less popular are the “Team Jolie” shirts, backing Angelina in the Aniston-Pitt case. The boutique has become so hot in L.A.