The 57th Inauguration.
"President Barack Obama is kicking off his inauguration weekend with a National Day of Service Saturday, as he and his family members join thousands of others volunteering at events around the country in honor of the Rev. Martin Luther King Jr.ís birthday."
"The signature event on Saturday will be an all-day fair on the National Mall with speakers including Chelsea Clinton and actress Eva Longoria, musical performances and booths where people can learn more about local and national service organizations. They also can do a bit of volunteering on the spot."