Lady Gaga Masked, Clad In Custom Calvin Klein At Rainforest Fundraiser (PHOTOS, POLL)

05/14/2010 12:36 pm ET | Updated May 25, 2011

Lady Gaga wore a trio of interesting-as-always outfits last night to the Almay Concert to celebrate the Rainforest Fund's 21st birthday at Carnegie Hall in Manhattan. Upon arrival, she was dressed in a long-sleeved, floor-length black gown by Calvin Klein, channeling Whistler's Mother.

For her performance, she changed into a white space-agey bodysuit and attached dress also made by CK:

2010-05-14-GAGA.jpg

And for her last ensemble of the night, Gaga donned her underwear, a leather jacket and a mask by Erickson Beamon.

2010-05-14-LadyGagaEricksonBeamonMask2.jpg

2010-05-14-LadyGagaEricksonBeamonMask.jpg

What do you think?