
Selena Gomez poses with an unrecognizable James Franco, Mandy Moore has a ‘blast’ on set, and Ke$ha finds rocks ‘in a hopeless place.’ Plus, more celebrity Twitter pictures from this week.

Princess of pop Rihanna tweeted this photo of herself looking lavish in a black gown and over-the-top hair, describing the look as “gangsta goth geisha.” The “We Found Love” singer was snapped on the set of her latest music video, “Princess of China,” a duo with British rockers Coldplay.

Rocker-turned-actor Lenny Kravitz tweeted this photo of himself with the message “Congratulations Lionsgate, Gary Ross & the entire cast and crew of @TheHungerGames. May the odds be ever in ‘our’ favor.” Kravitz was alluding to the blockbuster opening of his film The Hunger Games, which brought in more than $155 million in its first weekend.

The “Kiss From a Rose” singer tweeted this photo of himself and rocker Joel Madden, writing, “In great Company.” Madden and Seal are judges on the Australian version of the hit sing-off show The Voice, which is set to premiere April 15 on Australia’s Nine Network.

Twilight star Ashley Greene tweeted this photo of herself and joked, “We were clearly a bit indecisive when choosing which type of cookie to make...” The actress will reprise her role as the light-footed, soft-spoken vampire Alice one last time for the final Twilight installment, set for release in November.

Sin City star Jessica Alba tweeted this photo of herself, writing, “Dinner w my lovely sis in law Nikki.” The mother of two is writing a book based on her mission to create a “natural, authentic, and nontoxic life” for her family, to be titled The Honest Life.

“Candy” singer Mandy Moore tweeted this photo of herself with the caption “Having a blast on location.” The singer, once a rival to Britney Spears and Christina Aguilera, has been out of the spotlight for a few years after shunning pop music and marrying rocker Ryan Adams. Now she’s filming an untitled ABC comedy, in which she’s set to play Annie, a newlywed working in an upscale restaurant with her crazy family.

The “McLovin” actor retweeted this photo, in which he’s getting his photo taken, and wrote, “Time for your close up.” The Superbad star has been on tour with his alternative rock band, The Young Rapscallions; he’s the drummer.

The young Hugo actress tweeted this photo of herself and a friend and captioned it “metopera chic!” Moretz can be seen in the upcoming Tim Burton movie Dark Shadows, a fantastical comedy starring Johnny Depp and Helena Bonham Carter. The film follows an imprisoned vampire (Depp) who is set free and returns to his former home to protect his dysfunctional descendants.

“Blow” singer Ke$ha tweeted this photo of herself and joked, “I found rocks in a hopeless place!!!!” The unconventional songstress surprised audiences when she stepped out in a shockingly demure outfit at the 2012 Genesis Awards in Beverly Hills. Sporting a dark jumpsuit and red lips, she could almost have been mistaken for a number of other blond celebrities.

Funnyman producer Judd Apatow tweeted this photo of himself with a novel and wrote, “Fun to relax with some literature on vacation.” The Knocked Up director is receiving rave reviews for his latest project, the HBO series Girls. Using New York City as a backdrop, Girls, created by Lena Dunham, follows a group of friends through the ups and downs of being a 20-something female.

Straw Dogs actress Kate Bosworth posted this photo of herself on her WhoSay account and wrote somewhat enigmatically, “Our lover Lovern.” The Blue Crush star has become an authority on everything stylish, making numerous best dressed lists of 2011 and 2012.

Justin Bieber’s main squeeze tweeted this photo of herself and fellow cast, writing, “This is where the trouble begins… ;) ps Rachel is sexy.” The “Who Says” singer is filming Spring Breakers, set for release in 2013 and co-starring Vanessa Hudgens, Ashley Benson, and James Franco. Pictured here with flashy sunglasses, cornrows, and fake tattoos, the 127 Hours star looks more like Kevin Federline than himself.