'Jersey Shore' star DJ Pauly D along with New York area locals like Lady Gaga, rapper Nas, and actress Fran Drescher have filmed a profound 9/11 PSA to commemorate the upcoming 10th anniversary of the attacks which toppled the Twin Towers. The celebs talk about where they were, how they felt and what they remember during the attack.

The PSA not only asks people what they remember, but more importantly, to consider what they will do to in 2011 to give back. It's a reminder for people to think about what they can possibly do to support the families of those who gave their lives or lost them during the attacks.

Gaga, a native New Yorker who was just 15 years old when the terrorist attack took place, opens the 30 second spot. Dressed in white lace, including a hat, she recalls, "We were in disbelief, we all watched."
She later says, "We all watched the second tower fall together."

It's a brief, somber reminder of one of America's darkest days and reminds us that if there is something we can do beyond sharing memories, we should most definitely do it.

Watch Lady Gaga, DJ Pauly D + More in 9/11 PSA