Lohan and Ronson share a laugh during a break from filming Labor Pains in North Hollywood. Plus: DeAnna Pappas, Brody Jenner, Paris Hilton and more  

BELLE OF THE 'BALL'

Alicia Keys glams up for a good cause Thursday at the Black Ball in London. The singer attended the charity event as the global ambassador for Keep a Child Alive, a nonprofit organization fighting the spread of HIV and AIDS in Africa.