An exception was made for the premiere episode of the sixth season, during which Ziva goes undercover as a bar singer. De Pablo opposed the idea at first and did not want to sing on the show, believing it would be out of character for Ziva. Despite this, she agreed to after executive producer Shane Brennan described the scene. For the opening of the episode, she was dressed in a blue, backless dress that, according to "NCIS" Costume Supervisor Rachel Good, was made by the show's wardrobe department. "We decided we wanted something sexy but long that revealed a lot but wasn't short or vulgar in any way," said de Pablo. "It had to be sexy and provocative, but in a long, sexy, sleek way."