Self-PortraitistsDiane Sawyer, Ashlee Simpson & More Celebrity Twitter Pictures (Photos)Seth Green’s zombie apocalypse, Samuel Jackson’s cheer squad, and more of the stars’ top snaps this week.Mike Munoz10.06.12 4:45 AM ETSeth Green’s zombie apocalypse, Lenny Kravitz gets into character for Hunger Games, Samuel L. Jackson’s cheerleaders, and more top photos stars tweeted this week. Twitter / @DianeSawyerDiane Sawyer“Last few minutes prepping for tonight’s #debate. See you soon.” the ABC newswoman wrote while posting ++this photo++ () of herself taking some last-minute notes before the first presidential debate. The next face-off comes Oct. 16 at Hofstra University in New York. Twitter / @ashleesimpsonAshlee SimpsonAshlee Simpson posted this pic of herself celebrating her 28thbirthday by jumping on a trampoline with some friends in their pajamas. “Give me onesie good reason I shouldn’t have fun on my birthday!!!” she wrote. Twitter / @SamuelLJacksonSamuel L. JacksonThe actor/children’s book narrator ran into the Los Angeles Sparks at LAX and took the opportunity to snap this shot. Jackson will appear in Quentin Tarantino’s Django Unchained, which hits theaters this Christmas. Twitter / @DeenaNicoleMTVDeena CorteseAlong with costars Sammi Giancola and Jenny “JWoww” Farley, Deena Cortese posted this photo of herself and the reality-TV starlets posing with Detailspublisher Kevin Martinez.The Jersey Shore recently returned to MTV for its sixth (and final) season. Twitter / @LennyKravitzLenny Kravitz“In the chair on set with legendary makeup artist Ve Neill testing new Cinna looks for the new #HungerGamesfilm,” the rock star/actor wrote with this snap of himself behind the scenes.The Hunger Games: Catching Fire hits theaters next fall. Twitter / @EvaLongoriaEva LongoriaThe actress posted this photo to her WhoSay account of herself with some frightening dancers. “At the cocktail party for The Shopping Channel with amazing dancers! Yes I look scared!” she wrote. Twitter / @KeithUrbanKeith UrbanThe American Idol judge posted this photo of himself behind the scenes and wrote “Gearing up for day 2 of@americanidol#idolauditionsin Charlotte!” Urban has recently found himself playing the role of peacemaker after a feud between fellow judges Nicki Minaj and Mariah carey. Twitter / @DoutzenDoutzen Kroes“Quality time!!!!” wrote the Victoria’s Secret model when she posted this image of herself reading a book with her 1-year-old son, Phyllon Joy Gorre. Twitter / @RitaWilsonRita WilsonThe actress/producer was lucky enough to run into the Queen of Soul and took the opportunity to post this shot to WhoSay. “Cannot believe I ran into Miss Aretha Franklin. She was so lovely and looks great!” she wrote. Twitter / @MissKellyOKelly OsbourneThe fashionista/metal heiress posted this snap of herself and her father, Ozzy Osbourne, and wrote “Nothing is better then a cuddle from your dad!” Twitter / @SethGreenSeth Green“Ran into some old friends@HorrorNights this year,” the comedian better known as Scott Evil quipped about this WhoSay photo from Horror Night at Universal Studios Hollywood. Twitter / @donttrythisAdam SavageThe Mythbuster posted this shot of himself with director James Cameron as they tackle a Titanic myth for an upcoming TV special. “Mr. Cameron and I contemplate this Sunday night’s new MB episode’s scale tests,” he wrote.