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Americans who can't manage even a brisk walk around the block once a day, we have a special treat: video of your very last excuse dying before your eyes. First Lady Michelle Obama dropped by "The Ellen DeGeneres Show" talked up the joys of getting one's blood pumping. Obama told Degeneres that she often gets in her daily workout starting around 5:30 A.M., and it's usually a good 90 minutes of combined cardio and strength training before she calls it a day. Wanting to test the hype, Degeneres decided she wanted a friendly push-up duel.

It could be that one of the parties involved in the Heidi Klum/Seal divorce doesn't want it to go through. Seal appeared on "The Ellen DeGeneres Show" Tuesday to promote his upcoming album and talk about the divorce, but wore his wedding band and sang "Let's Stay Together." Was it all a message to Heidi?

For some, Thanksgiving is a day just to be grateful to be alive, let alone famous. Here are some of the ways celebrities are giving back to the world some of the bounty they've been given over the last year.

Ke$ha recently surpassed the two-million followers mark on Twitter, and decided she'd reward her faithful fans with this behind-the-scenes video. It's an exclusive look behind the scenes of her concert tour and a remix of her song "Sleazy." Watch it here.

The loaded Ecclestone sisters have been playing "Dueling Mansions" lately on the Los Angeles real-estate market, and one almost landed Ellen DeGeneres' home. Petra Ecclestone - 22-year-old Croatian-English model, fashion designer, socialite and heiress to former Armani model Slavica and Formula 1 racing billionaire Bernie Ecclestone - recently made an American name for herself by purchasing Candy Spelling's 57,000 square-foot former Holmby Hills mansion for a cool $85 million.

“Who are you to judge?” Selena Gomez asks in her latest song “Who Says.” It’s a question for the “haters,” but also one she might have for Ellen DeGeneres after getting called out during her appearance on the talk show this week. During the show, Ellen reminded Gomez of the September interview in which Gomez denied her relationship with Justin Bieber, calling it “weird” and saying he was like her “little brother.