"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. Using only the above description and what you know about the world, "The album Parallel Lines was released more than 20 years ago." is definitely correct, incorrect, or inconclusive? 