"I'm not ready to do any press yet," Lopez told The Hill Wednesday when asked what she was doing in the area.

The Washington political newspaper said rumors are circulating that Lopez may be penning a song for the Illinois senator.

The security detail guarding the presidential hopeful's door doubled from two to four during the course of the meeting.

After 90 minutes, an Obama staffer opened the door and told the crowd that had gathered outside, "She's gone," explaining she left the building with less fanfare than she entered.