But do the celebrities matter? Polling numbers suggest that celebrity endorsements might not boost a particular candidate, but the buzz they bring can't hurt as members of domestic and foreign press -- numbering in the 15,000 range in Denver -- look to cover all angles of the convention as it unfolds.
With everything going on around the city, delegates from across the country are busy chasing tickets and party invites.
Lillian Tamayo, a first-time attendee with the Florida delegation, says she knows credentials will be scarce at the Pepsi Center and at Invesco field Thursday night where Obama accepts the party's nomination. Tamayo, president of Greater Miami's Planned Parenthood, says the celebrities "are just another presence" in Denver.
Tamayo describes the party scene as providing "a color and texture to the work that you're engaged in long before you arrived here."
"To be here among like-minded individuals who really care about our country and to be able to do it in a festive kind of environment is really kind of exceptional," she said.