In October 1986, Vaisman organized a group show at New York's more established Sonnabend Gallery that featured work by Halley, Ashley Bickerton, Jeff Koons, and Vaisman himself. Embodying the intellectual style that had been established by International with Monument, the show marked a departure from the painterly style of Neo-Expressionism, the dominant style in New York's art scene of the earlier 1980s. The exhibition at Sonnabend received popular and critical attention, and the four artists became identified on a wider scale with the labels "Neo-Geo" and "Neo-Conceptualism." In New York magazine Kay Larson called the artists "Masters of Hype," while in the same magazine a month earlier, Paul Taylor had dubbed them "The Hot Four" and called Halley the "intellectual of the group." Roberta Smith wrote in the "New York Times" that "Halley's geometric abstractions suggest diagrams of battery cells with conduits or prison cells with barred windows (that is, electrical or social systems), while their powerful fluorescent colors come from somewhere beyond art."