Britney Spears has been back in the studio working on her follow-up to 2013's 'Britney Jean.' But it looks like an unheard track has just made it onto the web.

'Conscious,' which leaked yesterday (Jan. 22) thanks to, is supposed to be one of the tracks that was meant to be on Brit's 'Original Doll.' Unfortunately, 'Original Doll' never released, but at least we get to hear this track.

While it sounds like the song is still in the demo stage, we get a sense of the vibe that Britney was going for. And unlike other leaks from 'Original Doll' that have surfaced, this one actually gives you the whole song!

With an acoustic guitar and a conga drum forming the rhythm, Britney comes in with the synths and sings about the person who's keeping her sane and being a rock for her. And while this could have easily been a ballad, she clearly wanted to go for a more sultry vibe with this -- and there's nothing wrong with that.

As we put this one on repeat and wait for her new album to release, Britney is continuing her residency at Planet Hollywood Resort & Casino in Las Vegas and has extended her time there to 2017.

See Britney Spears Throughout the Years