Jennifer Aniston breaks out a tube top for the summer season as she shops at ‘Fred Leighton Rare Collectible Jewels’ on Madison Avenue in New York City before heading to the Metropolitan Museum of Art on Wednesday. Katie Holmes may have the pegged-jeans look all sewn up, but Jen‘s rocking the baggy-jeans look! Ex-boyfriend John Mayer was seen on Thursday hitting up fav Japanese hotspot Nobu Next Door.