an Entity references as follows:
"Once" is a song by English singer and songwriter Diana Vickers, written by Cathy Dennis and Eg White for Vickers' debut studio album, Songs from the Tainted Cherry Tree (2010). "Once" was produced and mixed by Mike Spencer and released as the album's lead single and Vickers' debut single on 16 April 2010. It reached number one on the UK Singles Chart, making it Vickers' most successful single release to date.