Robert De Niro has signed up to host a cocktail reception -- featuring first lady Michelle Obama -- to raise money for President Obama's re-election campaign, The Hollywood Reporter has learned. The event, scheduled for March 19 at the Greenwich Hotel in New York, will be co-hosted by Whoopi Goldberg, Star Jones, Angela Bassett and Tina Knowles, among others. For $5,000, guests will get one ticket to the reception plus a photo with the first lady. For $25,000, guests will be allowed to attend a private "greet" session with Obama.