Barack Obama has crossed one more event off his list of lasts, attending his final Kennedy Center Honors gala as president on Saturday night. Obama was joined by First Lady Michelle to honor actor Al Pacino, gospel singer and civil rights activist Mavis Staples, members of rock band the Eagles, singer-songwriter James Taylor, and pianist Martha Argerich.Stephen Colbert hosted the star-studded gala in Washington DC, and Secretary of State John Kerry doled out the medallions for one of the country’s most prestigious awards for performing artists.