There was a video last month of a guy singing a song as 29 different celebrities. The impressions were so good, we thought they might be fake, and it turned out they WERE. Well, now there's another video we're not sure about.
It's some musician named Mark Mikina singing the Alanis Morissette song, "Thank You". And he sounds EXACTLY like her. There are a couple spots where the audio doesn't seem to sync up with the video though. (Namely, 3:17 - 3:50.)
(Search for "Thank You Cover by Mark Mikina." We found a video that was posted four years ago of a guy named Mark Mikina talking. And he DOES have a really high voice. So if it's the same guy, maybe it's legit.)