Death Metal Mashup of the Day: Cats Want You to ‘Stay Out of My Face’

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What's better than crazy cat videos?

Crazy cat videos remixed to death metal.

You Can’t Unhear This of the Day: ‘Serial’ Meets Miley Cyrus’ ‘Wrecking Ball’

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Thanks, Internet. Thanks for that.

Just in time for a new episode of "Serial," the true crime podcast that's taken the world by storm, comes this mashup of the show's theme song with Miley Cyrus' hit single that launched a thousand memes.

Mashup of the Day: United State of Pop 2014

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DJ Earworm has been mashing up the top 25 pop songs of the year since 2007 with his "United State of Pop" video series.

He released the 2014 edition on Wednesday, "Do What You Wanna Do," with all the songs you love but are too embarrassed to admit.

DJ Earworm, whose real name is Jordan Roseman, says this year's songs are more down tempo than previous years, so weaving them together is a bit more difficult.

"The thing that has been most notable in the past two or three years is the decline of EDM," he told Billboard. "The 'United State of Pop' became this dance track from '09 to '12, and then starting last year, there just wasn't enough in that genre to fully support it, so I went down-tempo."

Mashup of the Day: Taylor Swift’s ‘Shake It Off’ with Aerobics Video from 1989 in Perfect Harmony

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Is this the new "Dark Side of the Rainbow?"

For some strange reason, Taylor Swift's earworm "Shake It Off" matches up in time with the 1989 Crystal Light National Aerobic Championship Opening video.

You've probably seen this bizarre of the spandex-clad dancers before, but now there's a whole new layer of weirdness and wonder to enjoy.

Mashup of the Day: Elton John Meets System of a Down - Crocodile Chop

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Mashup of the Day: King of the Hill Plus True Detective Equals Amazing

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Mashup of the Day: 258 Movie Trailers from 2013

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This thrilling compilation is so well done, it makes me wish it was a trailer for an entirely separate movie. Check out the full list of featured trailers on Tumblr.