Anything like that is not the official song. Looking at the side bar, there’s tons of videos like that, purporting to be “official songs.”
*This is official.
https://www.youtube.com/watch?v=-F7A24f6gNc
Not terrible but this isn’t the Robin Williams tribute song.
FWIW, I just heard the new Disturbed album and they tend to do “cover song” on their albums.
“Shout” - by Tears for Fears
“Land of Confusion” - by Genesis
And this latest album, “Indestructible” they’ve done a version of Simon & Carfunkel’s “Sound of Silence”