As the warm weather rolls in, actress Jennifer Aniston was recently seen sporting a tube top while browsing for rare jewelry at Fred Leighton on Madison Avenue in New York City. Later on, she made her way to the Metropolitan Museum of Art for some downtime. While Katie Holmes is renowned for her pegged-jeans ensemble, Jen seems to be embracing the loose-fitting jeans trend. Meanwhile, her former flame John Mayer was spotted enjoying a meal at his beloved Japanese restaurant, Nobu Next Door, last Thursday.