Lady Gaga looked as though she was ready to walk down the aisle last night as she performed at Montreal’s Jazz Festival.

The hit maker shocked the audience as she joined Tony Bennett during his performance, before singing a number of songs together from their forthcoming joint jazz album Cheek to Cheek.

The 'Marry The Night' singer took to the stage in a white beaded gown, fit with a diamond encrusted collar and veil-like cloak.

Captioning the black and white snap, “I had the time of my life tonight”, Gaga has said this collaboration album will be"the end of the beginning of my career”, according to Music and Lyrics.

You can expect Tony and Gaga's record to hit stores later this year.