Britney Spears' actual singing voice in 2001 branded 'horrible'

A new video featuring Britney Spears' actual singing voice from a 2001 Las Vegas concert has gone viral.

According to the Huffington Post, the isolated vocal track video is not being liked by viewers thanks to the 'Toxic' hit maker's voice.

The mum-of-two's bad singing voice has also been compared to the outstanding isolated vocals from The Beatles, David Bowie and Freddie Mercury and Whitney Houston.