[colomon]

Weirdly enough, if I cam to believe Discogs got the liner notes faithfully, they're not crediting Jon with singing a solo on "Airegin". I'm still 99% certain Jon sings the last solo in that song. (Interestingly, singing lyrics over his own scat solo from the original Lambert, Hendricks & Ross recording of "Airegin".) For sure it sounds like him, no one other than Manhattan Transfer is credited with vocals on that track, and when they recorded it live they don't even attempt to sing it, replacing it with a sax solo.

[AlbertCory]

I just listened to that again. I don't have a good enough feel for what he sounds like vs. the guys in the group.

He does get a credit for vocals and lyrics in Discogs, but they don't say which track:

https://www.discogs.com/master/97226-The-Manhattan-Transfer-...