Lunchtime Lowdown: Christina Aguilera Plans Charitable Performance; Kim Kardashian & Justin Bieber Make Waves

Aug. 14 2010, Published 8:55 a.m. ET

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Christina Aguilera set to perform in L.A. for museum foundation. (Just Jared)
Kim Kardashian and Justin Bieber makes waves at an Elle Magazine photo shoot. (Huffington Post)
Matthew McConaughey and Ryan Phillippe work hard on set of The Lincoln Lawyer. (Pop Sugar)
Is Levi Johnston the next Kevin Federline? (Pop Eater)
Tila Tequila attacked at a concert. (TMZ)