Jimmy Fallon, Carol Burnett Jimmy Fallon, Carol Burnett

This week, the Dancing with the Stars moment we've all been waiting for happened: Alfonso Ribeiro finally busted out The Carlton. Elsewhere, two kangaroos got into a fist(?)fight in the middle of an Australian street, and a German woman demonstrated her mind-blowing ability to sing multiple notes at once. Also, Jimmy Fallon and Carol Burnett unveiled their "lost soap opera," Tensions, and such celebrities as Lena Dunham and Natasha Lyonne teamed up with Lil Jon to encourage young people to vote. Check out those clips and more in our weekly roundup of the best online videos:

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TensionsHere's a soap opera we would totally watch — "Tensions," starring Jimmy Fallon as Maxwell and Carol Burnett as Petra, a husband-and-wife duo whose interactions were "too tense" for viewers. Watch a clip:

Two-tone singing: German singer Anne-Maria Hefele has been called a "one-woman orchestra." Check out her amazing technique of singing high notes and low notes simultaneously:

Gilmore Girls/Twin PeaksOctober has been a banner month for fans of Gilmore Girls and Twin Peaks, so obviously it was only a matter of time before someone created a mashup of the shows. It's surprising how well Twin Peaks' opening credits sync up with the Gilmore Girls theme song:

Bill Hader's SNL promos: Bill Hader (and hopefully Stefon!) will return to Studio 8H this weekend to host Saturday Night Live. Check out his promo reel with Kenan Thompson:

"Turn Out for What": Find out why Lena Dunham, Lil Jon, Fred Armisen, Natasha Lyonne and other stars are heading to the polls — and why you should too — with this new music video:

Alfonso Ribeiro does The Carlton: Dancing with the Stars saved the best for last Monday night, with Alfonso Ribeiro and his partner Witney Carson incorporating his famous Carlton dance into their jazz routine — and earning a perfect score in the process.

Kangaroo fight: Our only complaint about this video, which shows two kangaroos fighting in a subdivision in Australia, is that it doesn't have subtitles.