Self-Portraits Heidi Klum, John Stamos, & More Celebrity Twitter Pictures (Photos)Christy Khoshaba07.15.12Self-Portraits Heidi Klum, John Stamos, & More Celebrity Twitter Pictures (Photos)Seth Green shows off his honey, Katie Couric dons a new do’ and Ashley Tisdale jams to the beat of summer. Plus, more of the stars’ Twitter photos from this week.Christy Khoshaba07.15.12 8:45 AM ETSeth Green shows off his honey, Katie Couric dons a new ’do and Ashley Tisdale jams to the beat of summer. Plus, more of the stars’ Twitter photos from this week. Alessandra AmbrosioVictoria’s Secret Angel Alessandra Ambrosio gives us a wink as she poses with two “piratas”—her plain and simple tweet. She looks excited to pose with them, but they look pretty darn excited to pose with her too. John Stamos Lights. Camera. Action. John Stamos posts a dashing photo of himself on the set of the Broadway play The Best Man. “Showtime for the young senator from Tennessee,” he tweeted. Lord have mercy! Ashley TisdaleActress Ashley Tisdale is on top of summer’s latest jams. She tweeted, “Hey I heard u were a wild one ...” after Flo Rida’s Wild One single. She’s looking a little Michael Jackson–esque in this pose. Work it! Ryan Seacrest Where’s Waldo? “Found waldo!” tweeted Ryan Seacrest in a studio. He mastered the look with his coiffure, black rimmed glasses and striped top. But one thing, Seacrest: where’s your bobble hat? Katie CouricSomeone is inspired! Talk-show host Katie Couric gave her fans a new look a là E.L. James’s bestselling erotic novel Fifty Shades of Grey. “Maybe it should be 55 Shades of Gray!!!!” she tweeted. That look isn’t easy to pull of. Hats off, Couric! Snoop DoggSnoop Doggy Dog flashes his bottom set of shiny gold grills. The hip-hop artist tweeted, “Brush. Your grill!” We don’t know if that’s possible. But boy, he sure loves his bling. Giuliana Rancic“For those asking ... I'm wearing @noeljean tonight on E! News!!! Love the color bloc!” tweeted E News host Giuliana Rancic. But check out that old-school photo of Rancic in the background. A classic! Kylie JennerReality-TV star Kylie Jenner gets all done up thanks to hair and makeup artist Rob Scheppy. He’s the one behind the Kardashians’ and Jenner’s gorgeous looks. “Aren't we cute though? Heeeheee,” Jenner tweeted. Hugh HefnerIn his signature robe, signature pose and signature mentality, Mr. Hugh Hefner throws his arms around three blondies. It’s all part of his plan for some hoopla. “Headed out to Fun in the Sun,” he tweeted. In the sun or the shade, we know he’s always having fun. Rachel Zoe Super stylist Rachel Zoe looks glamorous as usual on a coffee run with her toddler Skyler and her nephew Luke. “Coffee bean break with my two boys, Sky & @lukeglassman ... perfection!” she tweeted. Of course, Zoe’s little tot is catching on to the glamour. Their looks … bananas. Seth Green“My love @ClareGrant and I hijacked a golf cart to get around a crazy people jam,” tweeted comedian Seth Green. It’s only fitting that he and his lady friend go after a good time. Meghan McCainDaily Beast contributor Meghan McCain shows some love for her doggy. “Bulldog kisses!” she tweeted. She wears Ray-Ban aviators and a messy bun as she hugs her dog named Duke. Mario LopezMario Lopez is quite the lady’s man in this photo. The Extra host is at work at The Grove in Los Angeles. “With Abbey Lee & the girls from Dance Mom,” he tweeted. Lopez is a father of a 2-year-old daughter named Gia. Heidi KlumModel and TV personality Heidi Klum expresses appreciation to her fans. “So much fun meeting fans today signing the @projectrunway book. Thank you for coming, everyone!” she tweeted. This photo must have been one of many for her book Project Runway: The Show That Changed Fashion.