That's What a Professional Whistler Sounds Like

Screenshot from the YouTube channel National Geographic

The channel National Geographic just released a short documentary about world champion whistlers.

Christopher Ullman is a international whistling champion. He believes whistling is an art form, and he sure isn't just your average, everyday whistler. Using his lips, teeth, and tongue, he can imitate different music instruments and even add embellishments to a song.

He also specified that he's not allowed to kiss anyone for 24hours before his giving a performance.