Carey did not do a significant amount of public performing in her early years in the music industry, partially due to stage fright. Despite this, she became a successful musician with two top-selling albums and five number-one singles before she ever gave a significant performance before a live audience. Her first significant performance was "MTV Unplugged", which received positive reception. In July 1993, she performed before a largely private audience in Proctor's Theatre in Schenectady, New York, which was used for a NBC television special and the "Here Is Mariah Carey" video release. In late 1993, she decided to conduct a short United States tour to promote her album "Music Box", which had been released two months previously. Carey played her first concert tour in arenas, rather than working her way up from smaller venues as is more customary.