"Glee" returns to Fox for its fourth season September 13, and cast members are taking a cue from the network's Green it, Mean It initiative in their own lives. "I take my bags to the grocery store," says Matthew Morrison. "I separate my recycling," says Kevin McHale, and Chris Colfer uses energy efficient light bulbs. "I'm always conscious " of living green.


This season of "Glee" will take place in both Ohio and New York City, following graduates as they try to make it in the Big Apple. Lea Michele calls the transition "totally seamless, Rachel makes sense in New York." "It's refreshing, a nice hybrid of what we had before," says McHale, who has been working on music and will do an album "If I get enough songs that I like."


Morrison is a step ahead, having recorded his second CD, an album of Broadway standards, including "The Lady is a Tramp," "On the Street Where You Live," and "Luck Be a Lady," a duet with Adam Levine of "The Voice" and Maroon 5. He's excited about Season Four because "after three years of molding these misfits they're now on top and now it's a different dynamic. How do you stay on top? And how do you weave the good spirits you had before into a new group of people? And now that it's cool everyone wants to join, so you have to find people that are passionate about it."


Colfer is thrilled about what's in store tor Kurt. "He goes to New York, and Sarah Jessica Parker is his mentor." She's one of several big guest stars: Kate Hudson is in the premiere. Meanwhile, "Struck By Lightning," a movie Colfer wrote and stars in, is making the film festival circuit, and he spent several weeks on a book tour earlier this summer to promote his children's book "The Land of Stories: The Wishing Spell," the first of a series. "I'm working on a sequel right now," he says.


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'Glee' stars go green
'Glee' cast members (Lea Michele, Chris Colfer) dish on season four, extracurricular projects.