Earth Day 2010 is right around the corner — April 22 — and everyone is trying to do their part to clean up and help save our planet — even celebs!

Kristen Stewart, Matt Prokop, Doug Brochu and Jennifer Stone are just four of the many celebs that are giving back. How? Check it out below:

Doug: “Five minute showers. My dad’s a huge believer in that. He’ll be pounding on the door saying, ’5 minute showers!’ so you just get annoyed and you’re like, ‘OK, fine!’”

Kristen: “I try to recycle everything that I use. I wish I could think of a really great idea to make everyone fix the environment, but… You drive a good car and you try not to take long showers.”

Matt: “Your typical things. I recycle and turn off all the electricity when I leave and take less time in the bathroom. I take really fast showers — the little things that actually do help in the long run. Me and my friends are planning to do a lot of tree planting this summer and hopefully do all we can to really give back.”

Jennifer: “I drive a prius. That’s what I do. I [am green] in my car and I try to turn off the lights when I leave a room and use eco water bottles and things like that. There are lots of easy things that you can do, so I try to do the little things to make a big difference.”

For more celebs and what they’re doing to celebrate and help Earth Day 2010, check out Alloy.com! Also check out Matt‘s DoSomething.org video below: