Then-U.S. Ambassador to China Jon Huntsman and his wife Mary Kaye, right, greet members of the Chinese delegation in this file photo from Jan. 19, 2011. (AP Photo/Charles Dharapak)

Jon Huntsman appears on "Late Show with David Letterman" for the first time -- Wednesday, 10:35 p.m., CBS/Ch. 2.

Dave embarrasses the ex-Utah governor and GOP presidential hopeful with a photo from 1978 showing Huntsman in his rock 'n' roll days. And then Huntsman sits in with Paul Shaffer and the band, playing the piano.

Hey, it worked for Bill Clinton and his saxophone on "Arsenio" back in 1992.

Here's a clip:

http://www.cbs.com/late_night/late_show/video/?pid=Eu4T6DQm8l0pGx7__NJ9duxi7XoyO_ET