I've seen so many covers for this I thought that I would combine a few of my favs into a "choir".
None of these solos linked with each other. They are all separate. They are premixed and no additional mixing was done. Enjoy it for what it is. Some people with some great voices singing a popular song.

Links to versions...
Caleb Hyles:    • Let It Go  Male Vocal Cover  Frozen...  
Grace Lee:    • Disney's Frozen  Let it Go by Idina ...  
Annelise Forbes:    • 9Year Old Annelise Forbes Sings Her ...  
Yvar De Groot:    • Yvar  Laat Het Los (From 'Frozen' Co...   (Dutch Version)