"Heart of Glass" is a song by the American new wave band Blondie, written by singer Debbie Harry and guitarist Chris Stein. Featured on the band's third studio album, "Parallel Lines" (1978), it was released as the album's third single in January 1979 and reached number one on the charts in several countries, including the United States and the United Kingdom.
The first single from the album Parallel Lines reached number one on the charts
The context doesn't mention anything about the previous two singles of the album Parallel Lines. They may or may  not have been on number one. It was difficult because there is no information about them for the AI to reason about.