Today is Earth Day, and Ellen is doing her part to make our home a better place to live -- by giving you a great show! The hilarious WANDA SYKES is here for the 10th time, and Ellen is ready to celebrate the occasion. Wanda's twin babies just turned one year old, and we're sure she has her hands full! Then, EVAN LYSACEK has brought his gold-medal-winning skating moves to the dance floor -- and makes it look easy. He has a great partner in ANNA TREBUNSKAYA, and they're stopping by to chat with Ellen and perform a dance. Also, another contestant was voted off "American Idol" this week, but that doesn't mean it's the end of the road for them. They only need to look at former contestant JASON CASTRO, who is about to release his debut album. He'll stop by to perform his hit song, "That's What I'm Here For." And you'll want to pay attention to Ellen's tweets. You may find yourself talking with Ellen live -- and winning huge prizes!