Washington (PTI): The swearing-in of President-elect Barack Obama on January 20 is going to be the most star -studded event in US history with die-hard fans wanting to be part of the watershed event.

Celebrities from all over the entertainment spectrum are planning to flock to Washington, D.C., to welcome 47-year-old Obama, the first black-American as the 44th US President.

Stars at an inauguration ball hosted by the Creative Coalition on January 20 include musicians Sting, Elvis Costello and Sam Moore, People.com reported.

The group says it has already confirmed a bevy of big- name guests to the inauguration ceremony itself, including Anne Hathaway, Susan Sarandon, Marcia Cross, Tim Robbins, Seal, Adrian Grenier, Ashley Judd, Jane Krakowski, Rachael Leigh Cook, Spike Lee and Ron Howard.

Die-hard Obama supporters like Oprah Winfrey and Bruce Springsteen are in talks to perform at Obama's inauguration ceremony, so as A-listers like Beyonce, Diddy and Mary J Blige, according to New York's Daily News.

Some say the lists of stars would be longer as the fact is that even celebrities are having troubles that regular Obama fans are grappling with as the inauguration nears. All the hotel rooms in Washington, D.C., are sold out.