 Archuleta came back to the American Idol stage on April 7 , 2010 , on the show 's ninth season and performed John Lennon 's " Imagine " , which David had performed previously in the Top 20 Week when he was a contestant on the show . After his performance , he mentioned that he was working on his third studio album . Archuleta sang " The Star @-@ Spangled Banner " and " Stand by Me " at the 30th anniversary of the annual A Capitol Fourth concert in Washington , D.C. on the Fourth of July . The show was aired on PBS at 8pm EST live and tape delay PT . 
