David Pack (b. July 15, 1952), is an American musician. He is notable for his work with the 1970's band Ambrosia. David Pack was co-founder, guitarist and main vocalist for the band Ambrosia. Noted hits from the band written by Pack include "Biggest Part Of Me" (1980), "You're The Only Woman" (1980), "How Much I Feel" (1978), as well as co-writer on one of their first hits, "Holdin' On To Yesterday" (1975). He also worked as a producer with many famous musicians in the 1980s, such as James Ingram and Michael McDonald.