Complex sentence: It debuted on 16 March2007 as a strictly limited first edition, at The Fest for Beatles Fans in Secaucus, New Jersey, at which Smith appeared live and sang "Oh Babe" to a packed, cheering ballroom of fans.
Split into simpler sentences: It debuted on 16 March2007 as a strictly limited first edition at The Fest for Beatles Fans in Secaucus, New Jersey. There, Smith appeared and sang "Oh Babe" to a packed, cheering ballroom of fans.