President Obama is in the Bay Area this evening at a series of fundraisers, including one event at the Atherton home of Facebook COO Sheryl Sandberg and her husband David Goldberg. The one guest who stood out: Lady Gaga.

According to the pool reporter, Lady Gaga was “delicately walking on sky-high heels (she towered over everyone, a good two feet taller than POTUS). She was wearing a floor length sleeveless lacey black dress, her blonde hair was gathered in a bouffand up-do adorned with black hair piece with black veil down the back, which she swept to the wide and in front of her left shoulder. (The hair added about six inches to her stature).” The singer took the middle table below a white tent set up for the event, and stood up along with everyone else when Obama arrived.

She was front and center in the crowd, but Obama never “acknowledged her obivous presence” during his remarks, but more than likely they greeted each other beforehand because it was a smaller event, the pool reporter said.

The tickets to the event were $17,900 per person.

Lady Gaga was engaged in the repeal of Don’t Ask, Don’t Tell, and even hosted a rally last year to try to put pressure on Congress. She also attended a rally in support of gay and lesbian rights in Washington in October, 2009, the day after she attended the Human Rights Campaign dinner there, where Obama was the keynote speaker.

Update: During a Q&A session, Lady Gaga thanked the President for what he has been accomplished, then “read from what she said was a letter from a fan about the suicide of another fan who had been subjected to bullying,” according to ABC News. Obama thanked her then talked about the administration’s anti-bullying campaign.