The rally had been organised to introduce the group's candidates for Wednesday's vote.
She ran a session with staff, introducing the group to augmented reality and work using Microsoft Kinect.
Ms. Barnett's brother stood to make a toast and introduced the group from her office.
Their popularity prompted MTV to rebroadcast "The Monkees" series, introducing the group to a new audience.
Even before the Excursion was officially introduced, the group ran a contest on its Web site to choose a nickname for the vehicle.
David Bowie even introduced the group onstage, at one of their 1977 New York shows, calling them "the band of the future".
On Friday, she threw herself into her husband's new effort to organize supporters, introducing the group, Organizing for Action, in an announcement video.
Spence, who has the build of a former rugby player and a preference for coral-colored jeans, rocked back and forth on his toes as he introduced the group to the concept of multisensory design and its implications for retail.
A few weeks ago, Matthew Barzun, the US ambassador to the UK, invited them to play a gig at his official residence: introducing the group, Barzun credited them with helping him to woo his wife.
The moderator introduced the group to the image construction phase using a two axes scenario technique, presenting four (uncertain) futures as an illustration.
