Denise Richards & Richie Sambora Back Together for Friend's B-Day Bash

Plus: More star sightings!

Source: http://feeds.people.com/~r/people/headlines/~3/N6b3k5weXiU/0,,20544138,00.html

Alessandra Ambrosio Alexis Bledel Ali Campoverdi Ali Larter Alice Dodd Alicia Keys Alicia Witt