Cameron Diaz is ready to go full throttle on a new travel-adventure show for MTV, one of six celebrity-driven reality programs in development at the channel that brought you the ''The Osbournes'' and ''Newlyweds: Nick & Jessica.'' According to The Hollywood Reporter, Diaz will executive-produce and star in the series, in which she and her pals will embark on an adventure in an exotic locale (say, sand-surfing in the Chilean desert), discuss local environmental issues there, and impress us all with their ability to survive without personal assistants or indoor plumbing. (So, does this mean we get to see her recent ski-and-snowboarding vacation in Aspen with boyfriend Justin Timberlake?)
Hilary Duff is another star with an MTV reality show on the way, though the network offered no details about her show's premise. Her ''Agent Cody Banks'' costar Frankie Muniz also has an upcoming show, where he'll tag along as high school students get to live out their fantasies. Foxy Brown will let viewers see behind-the-scenes glimpses of her career and personal life in ''Foxy's Family.'' MTV vet Andy Dick will star in ''The Assistant,'' in which the comic actor submits potential underlings to various humiliations. (It's like Donald Trump's ''The Apprentice,'' without the promise of a six-figure salary at the other end.) And MTV will also let viewers watch the recording sessions behind the first album by ''7th Heaven'' actress Ashlee Simpson -- who is, of course, the kid sister of ''Newlyweds'' star Jessica Simpson.
MTV also announced a new show for comedian Orlando Jones, though the former talk show host's new series is not a reality program. Rather, he'll perform various voices in the cartoon ''Chico & Guapo,'' a comedy centering on two janitors at a recording studio who yearn to break into the hip-hop business.