This Is What a World-Class Whistler Sounds Like

World-class whistler Christopher Ullman breaks down the technique behind his trade.

Christopher Ullman is a four-time national and international whistling champion. Using a combination of his lips, tongue, and teeth, he can mimic a wide variety of instrumentals and popular songs.

For more than 30 years, he’s performed classical songs and improvisational riffs at numerous events, including symphony orchestra concerts, NBA basketball games, and even at the Oval Office.

Check him out in action: