What member of Celestial navigations has worked on over 450 gold and platinum albums including "21"?
Celestial Navigations: Celestial Navigations was an American music and story-telling group with members Geoffrey Lewis, Geoff Levin, David Campbell, Eric Zimmerman, Betty Ross, and Chris Many. David Campbell (composer):  He has worked on over 450 gold and platinum albums including "21" (Adele), "Futuresex/Lovesounds" (Justin Timberlake), "The 2nd Law" (Muse), "Invincible" (Michael Jackson), "Spirit" (Leona Lewis), "Aaliyah" (Aaliyah), "Fallen" and "The Open Door" (Evanescence), "Meteora" (Linkin Park), "B'Day" (Beyoncé), "Bangerz" (Miley Cyrus), "The Astonishing" (Dream Theater), and various albums by his son Beck.
David Campbell