Lady GagaLady Gaga visited the set of 'The Oprah Winfrey Show' this afternoon for a candid interview and performance dressed wearing what else but a sparkly white catsuit and sea-urchin-inspired hair.

But the 'Poker Face' singer got serious as she discussed the importance of supporting the relief effort in Haiti. Recalling her time in New York during 9/11, she admits she "never felt like anyone understood" what the city was going through and now wants to raise awareness to her fans about the importance of lending a hand abroad. Tearing up, she also revealed that all proceeds from her January 24 concert in New York City will go to Haiti. (Forward to the 3:10 mark.)