Joshua Redman - Birthday Song (Part II) Live
Joshua Redman - Tenor Sax, Organ, Effects
Sam Yahel - Keyboards
Jeff Ballard - Drums
The slap tongue portion of this video occurs at the very end, but it is GORGEOUS. In some of the other videos it is not nearly as clean as this.
Joshua Redman - Slap Tongue Intro
Joshua Redman - "Hide & Seek" Slap Tongue Intro
This takes place at the Jazz Alley in Seattle on June 7th, 2007. This is an amazing sample of Redman's ability to slap tongue. It's also filmed at angle that you can see a little bit of how he's manipulating his mouth (except when the waitress gets in the way :-) ).