It might be a Compressed RAR file containing vocal samples or backing tracks intended for practice or karaoke, often found on third-party file-sharing sites.
If an archive is downloaded from an unknown source, it should be scanned with updated security software before extraction. Download singing b033 rar
I am providing a paper focused on the aspect, as this is the most constructive interpretation, but please be aware of the security risks associated with downloading such files from unofficial sources. It might be a Compressed RAR file containing