Britney Spears has come in for a lot of grief over the years, both for blatantly miming during concerts and for failing to hit the notes that she was once able to.

However, newly unearthed footage of the star singing her 2004 single 'Toxic' has proven what might surprise many - she can really sing.

The song, of course, is famous for both its video and the AutoTune effect on Spears' vocals - but hearing her sing the song straight-up puts a whole new spin on it.

Hear both below: