Of course they had more serious business to attend to in Washington during the weekend, but actor Jimmy Smits and singer David Archuleta were spotted at a lot of the typical touristy places, too — often checking out the town together.

The 54-year-old "West Wing" veteran and 19-year-old "American Idol" runner-up visited the National Archives and the Smithsonian National Museum of American History together, bringing family and friends along, too.

Smits, who plays a Supreme Court justice who quits the court in his next television role on the show "Outlaw," also paid a visit to the high court before heading to Nationals Park to view Friday night's Nats game against the Mets. (He returned on Sunday to throw out the ceremonial first pitch at the Fourth of July game).

Archuleta opted to see the National Portrait Gallery and Holocaust Memorial Museum. He also dined Saturday at Old Ebbitt Grill, where he was, of course, approached by young fans.

"David signed autographs for them all and wished them a great Fourth," Steven Ross, of the Artists and Athletes Alliance, told Yeas & Nays. Ross, whose organization connects Hollywood to Washington and vice versa, played tour guide for the majority of the weekend.

Smits' primary reason for the visit was to host (for the third time) "A Capitol Fourth," the annual Fourth of July concert celebrating its 30th year on the National Mall. Archuleta was there, too, performing the national anthem. Smits and Archuleta were joined by Gladys Knight, Reba McEntire, Darius Rucker, John Schneider, classical pianist Lang Lang and the National Symphony Orchestra.