Marking the start of second term, Obama calls for unity and action ← Related Article Visit The Boston Globe Share on Twitter Share on Facebook Comment on this Scroll to top of page kevin lamarque/reuters President Obama waved after his dance with Michelle Obama at the inaugural ball. Jacquelyn Martin/Associated Press Jennifer Hudson performed while President Obama danced with Air Force Staff Sergeant Bria Nelson and Michelle Obama danced with Marine Gunnery Sergeant Timothy Easterling. CHIP SOMODEVILLA/epa Alicia Keys performed at the inaugural ball. Paul Sancya/associated press Vice President Joe Biden and Jll Biden reacted to the crowd at the inaugural ball. paul sancya/associated press Stevie Wonder performed at the ball. alex brandon/associated press Members of the US Coast Guard marched in the inaugural parade. Charlie Neibergall/Associated Press The Boston Crusaders Drum & Bugle Corps performed while passing the presidential box in the parade. Charlie Neibergall/Associated Press The 54th Massachusetts Volunteer Infantry Regiment, Company B, Maryland, passed the presidential box during the parade. derrick z. jackson/globe staff President Obama took the oath of office from Chief Justice John Roberts. derrick z. jackson/globe staff President Obama delivered his inaugural address from the steps of the US Capitol. President Obama waved to the crowd at the inauguration. Getty Images President Obama and wife Michelle waved during the inaugural parade. Getty Images Supporters waved flags and cheered during the ceremony. Reuters Beyonce sang the national anthem. AP Senator Elizabeth Warren attended the ceremony. EPA Hundreds of thousands of people packed the National Mall for the event. Getty Images Hillary and Bill Clinton greeted others at the ceremony. AP Supporters gathered in crowds for the ceremony. AP The Capitol building was decorated with flags for the ceremony. Reuters Senator John Kerry of Massachusetts took a photo.