I'm aware of Grady Tate as a drummer, but was pleasantly suprised to find he has a career as a singer as well.
This effort from 1968 with Gary McFarland in charge is an excellent listen. Tate doesn't have the greatest voice (he's no Hartman) but allows his natural musicality and style to come through. Cool version of "Work Song" rivals that of Oscar Brown.
The only track I don't like is "Don't Fence Me In" which is too country and doesn't fit the rest of the album. Is that really Herbie Hancock on piano?