I found an amazing youtube channel. This man is a one man choir, basically. Sometimes he does collaborations with other singers like himself. He does covers of many songs.
He does lots of Beatles and his cover of "Blackbird" is particularly nice. And I LOVE his covers of older songs such as "Good Old Summertime" (which Veggietales sings in one of their videos....) and "I've Got Rhythm" and "Everybody Wants to be a Cat" from the Aristocats (one of my favorite Disney movies)!
Live long and prosper (in the good old summertime)!