You cannot tell this is AI, this is Britney singing No Scrubs

[Alice in Wonderland]

I challenge you to find an AI cover better than this one. Her rap part and riffs are SO on point, the way she says "big willy."
Sounds like Circusney went back in time. 

Right now, this is the best one I've heard after listening to almost every single AI cover on YouTube (yes I have no life).
 

[ObsessedBritFan1]

This is my favourite 

 

[nux1989]

These AI cover made me realize how important timing and phrasing are for a singer.
You can adjust pitch and even texture of the voice but the way a person pronounce and deliver is never duplicated.

[rik LVR]

This honestly isn’t good though