Tamara ‘TK’ Kramer opened the doors of Studio 68 London for Lady Gaga.

Lady Gaga was snapped with white powder all over her hands, neck and face while waving to her fans, leaving Studio 68 London.

This account was taken from:

http://www.justjared.com/2013/10/26/lady-gaga-dons-white-powder-all-over-her-body-in-london