Keith Urban was a surprise guest at Wednesday night's (Oct. 13) Capitol Street Party, a free concert that featured performances by Darius Rucker, Luke Bryan and other artists on the Capitol Nashville roster. Urban joined Rucker on Nashville's Demonbreun Street, a popular nightlife district near Music Row, for an acoustic version of Urban's [mtvn_video_page id="26388"]"Rainin' on Sunday"[/mtvn_video_page] and a cover of the Steve Miller Band's "The Joker." Bryan, following a set of his own hits, later shared the stage with Rucker for Hank Williams Jr.'s "Family Tradition." School supplies were collected from attendees through the PENCIL foundation to benefit Nashville Metro Schools, and those who donated got the chance to meet Jennette McCurdy, a star of Nickelodeon's iCarly, after her performance. McCurdy recently released her first single, [mtvn_video_page id="552480"]"Not That Far Away."[/mtvn_video_page] Newcomer Troy Olsen ([mtvn_video_page id="531719"]"Summer Thing"[/mtvn_video_page]) opened the show, and new artist Walker Hayes entertained during an after-party at a nearby club.