Star Tracker: Robi Draco Rosa, Tyler Posey, Nicole Richie and Cameron Diaz

—After undergoing six months of treatment for non-Hodgkin’s lymphoma, Robi Draco Rosa said he’s “happy to be alive”, the Latin American Herald Tribune reports.  According to the news outlet, the Puerto-Rican ex-Menudo star told El Nuevo Dia that he discovered “a thousand things” about his character and personality that have changed his life. 

Cameron Diaz has been a very bad girl lately!  At least, that’s the role she plays in her new film Bad Teacher, which hits theaters this Friday.  Diaz plays an apathetic junior high school teacher who gets dumped by the rich man she’s set to marry and finds herself having to actually do her job.  For the role, Diaz adopted a pretty dirty mouth – to watch the rest of the film’s raunchiness, watch a gag reel here.

Tyler Posey and his fellow “wolves” on the MTV series Teen Wolf need help zipping up their pants while filming, EOnline reports.  The prosthetics the actors wear to become believable werewolves – which include fake nails and contacts – make it hard for them to pull up their zippers. “When we were doing a fighting scene or something, when they would break it off it would hurt a lot,” said Posey.  “Like for a second I would think that I ripped off my actual nail.” 

Nicole Richie got her groove on recently to Britney Spears’ “I’m a Slave 4 U”.  Dressed in a white tank top and denim shorts, the 29-year-old schooled her friend in the dance-off, amid laughter from friends in the background.  The video was uploaded to YouTube yesterday, to watch Richie replicate the pop princess’ famous dance moves, click here.