A new Lady GaGa song called either 'Burqa' or 'Aura' has leaked online.

The track is believed to be a demo of a track recorded during sessions for the singer's new 'ARTPOP' album.

It features the singer's distinctive voice, backed by an eastern-sounding stringed instrument, before a dance beat kicks in.

The song's lyrics make references to wearing a veil and a burqa - traditional dress for women in certain Islamic cultures, worn as an outer garment to cover their bodies and sometimes faces while in public - as well as the lines: ''Do you wanna see me naked, lover? /

Do you wanna peak underneath the cover? / Do you wanna see the girl who lives behind the aura?''

In a later verse the song seems to make another reference to the middle east, when Gaga sings: ''I may not walk on your street / Or shoot a gun on your soil / I hear you screaming / Is it because of pleasure and toil?''

The bad quality of versions of the track on the internet suggest it is an unfinished version.

Aside from guest appearances, the song is the first taste of new material from Gaga since 'Marry The Night', released in 2011.

The first official single from 'ARTPOP' will be 'Applause', set for release on August 19.