President Barack Obama presented former Beatle Paul McCartney with the Gershwin Prize for Popular Song, on behalf of the Library of Congress. Jim Lehrer has a look at McCartney's serenade to the president and first lady at the White House.

"I've been riding a bike, in New York mainly, for almost 30 years, just as a way of getting around, starting off just getting around downtown to the clubs, art galleries, dinner with friends," says musician, artist and culture connisseur…