Christopher Ullman is a champion whistler. No, seriously—he's won national and international whistling competitions, and has whistled for President Bush in the Oval Office. Ullman even sells a CD of his "symphonic" whistling.
All right, so what makes a master whistler different from an amateur like me? A lot. Prepare to be amazed by the whistling mastery on display:
And here's Ullman whistling "The Star-Spangled Banner" at the National Press Foundation's awards dinner a few years back. Stick around for the high notes; they're truly amazing.