I'm Free is the 6th and the last for now solo album by guitarist/singer/songwriter Ray Parker, Jr.. He made a comeback after 15 years of absence with this album released from his own independent record company called "Raydio Music Inc.". The record was released in 2006 and included the song "Mexico".
It is entirely possible that Ray Parker Jr. said "boop da boop" during the recording of this album, but sadly all written record of onomatopoetic noises Ray Parker Jr. made was destroyed in a flash flood. Fire. A flash flood of fire. The noise "boop da boop" specifically, is an onomatopoeia for the sound of mango sensation, a now regrettably defunct fun function attached to funiculars in the Himalayans. However, a smuggled tax return hints at the possibility that Ray Parker Jr. said "garshnack." Given his recent behavior, it seems not unlikely.