Kendall and Kylie Jenner -- also known as the younger siblings to Kim, Kourtney and Khloe Kardashian -- are making a buzz over the internet this week with their latest homemade video. The daughters of Olympian Bruce Jenner take on Katy Perry's hit, 'Firework,' as they frolic on a picturesque ranch in Wyoming with their friends, their dad, horses and plenty of real cowboys!

"Just like our 'Party in the USA' music video, this one was done in Wyoming," they write on the video's YouTube description. "We go there every year with Maddy and Spencer, our two best friends that are in this video with us. Hope you guys enjoy!"

None of their famous half-sisters make an appearance in the video, which Kendall (15) and Kylie (13) are lip-syncing along to Perry's famous hit anthem, but the video boasts creative and memorable moments spent with their girlfriends.

Papa Jenner makes his cameo at the end of the video, as the girls lift the former gold medalist for the final scene. To keep up with Kendall and Kylie's homemade videos, visit their official YouTube page by clicking here.

Watch the Kendall and Kylie Jenner 'Firework' Video