Lady Gaga gave a surprise performance at the Plaza Hotel in New York last night (January 5).

The singer played two jazz tracks, 'Someone To Watch Over Me' and 'Orange Coloured Sky', accompanied by her friend and trumpeter Brian Newman.

Lady Gaga wore an S&M-style bondage outfit for the gig in The Oak Room – you can watch video footage below.

Details about her performance were announced by the hotel's staff on The Oak Room's Twitter page.

It is the second time in four months that Lady Gaga has surprised guests with a performance at the famous New York night spot.

Meanwhile, Lady Gaga has announced that she will release her new album 'Born This Way' in May, preceded by the same-titled single in February.

Lady Gaga at The Oak Room:

(by Jason Gregory)