Obama is hanging out with Oprah Winfrey at the former talk-show host's Maui villa. A local resident noticed lots of police cars and Secret Service agents around Winfrey's compound these past few days.
The first lady turns 50 on Jan. 17. She'll celebrate back in Washington DC.
By the way, Winfrey is turning 60 on Jan. 29.
After the celebration, Obama will head here, to San Francisco's Fairmont hotel.
Politico is reporting that the first lady will host a democratic committee fundraiser in San Francisco on Jan. 31. She'll be joined by House Minority Leader Nancy Pelosi.
The fundraiser was originally scheduled in October, but was postponed because of the government shutdown.
KGO-TV San Francisco, CA contributed to this report.