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UPDATE (5/11): Mark Ryden has now shared the videos for each of the versions of "Daisy Bell (Bicycle Built For Two)" that can be heard on The Gay Nineties Old Tyme Music: Daisy Bell, and they're basically the creepiest cartoons you've ever seen. Watch some of the vids below, especially if you're interested in watching an animated Tyler, the Creator get psychedelic on a bike in the woods.

Original Story: Katy Perry and "Weird Al" Yankovic—together at last! 

According to The Hollywood Reporter, the pop star and the spoof-song master both appear on an odd new compilation called The Gay Nineties Old Tyme Music: Daisy Bell, a record retailing for nearly $100 that features numerous artists playing a version of the 1892 song "Daisy Bell (Bicycle Built for Two)." 

Other artists included are Tyler, the Creator, Metallica's Kirk Hammett, Devo's Mark Mothersbaugh, Nick Cave and film composer Danny Elfman. The concept compilation was spearheaded by visual artist Mark Ryden to coincide with a new show opening in Los Angeles called The Gay '90s. 

The album pressing is limited to 999 vinyl copies sold at $99.99 each, with the proceeds benefiting Little Kids Rock, a nonprofit that helps disadvantaged kids in elementary schools learn music. 

Ryden's work has made its way into the music world before: He did album covers for Michael Jackson's Dangerous, Red Hot Chili Peppers' One Hot Minute and Tyler, the Creator's Wolf

"Daisy Bell" received a resurgence in popularity thanks to the 1968 classic sci-fi flick 2001: A Space Odyssey, which found the computer HAL 9000 singing it while "dying." In 1961, it was the first song to ever be sung by a computer, which you can listen to below: