Obama Speech Calls for 'Era of Responsibility'

Obama, who has promised change in Washington, is trying to set a bipartisan tone right away. His inauguration celebration includes three dinners this evening to honor people who have reached across the aisle.

Two of those honorees are Republicans, including Sen. John McCain, R-Ariz., the man Obama defeated to become president.

Stephanopoulos told "GMA" the dinner for McCain is a "measure of the bridges they are trying to build. ... That is remarkable."

The other two dinners will salute former Secretary of State Gen. Colin Powell, a Republican, and Biden.

But first, the celebration. A constellation of stars serenaded the Obamas at the Lincoln Memorial Sunday. The lineup, dubbed "Obamastock," included Bono, Bruce Springsteen, Beyonce, and Usher. Comedian Jamie Foxx spoofed Obama by imitating the way he speaks.

President Bush Says His Goodbyes

Obama has invoked Lincoln repeatedly in the run-up to his swearing-in. He spent much of the weekend on a train retracing part of the route that Lincoln took to Washington for his own inauguration.

As Obama planned out his first steps, President Bush made some of his farewells. He called world leaders, including Russian Prime Minister Vladimir Putin and Italian Prime Minister Silvio Berlusconi, to say goodbye.

Bush plans to fly home to Texas on Air Force One after Obama's swearing-in and has invited about 10 friends to join him and wife Laura for the trip back home.