Which artist's album did all the tracks reach the top 20 of the UK Singles Chart in its first week?

"÷" (pronounced and subtitled "Divide") is the third studio album by English singer-songwriter Ed Sheeran (born 17 February 1991). It was released on 3 March 2017 through Asylum Records and Atlantic Records. "Castle on the Hill" and "Shape of You" were released as the album's lead singles on 6 January 2017. The album won the Grammy Award for Best Pop Vocal Album at the 60th Annual Grammy Awards.

The album debuted at number one in the United Kingdom, selling 672,000 copies in its first week, making it the fastest-selling album by a male solo artist there and the third-highest opening behind Adele's "25" and Oasis' "Be Here Now".

All the tracks on the album reached the top 20 of the UK Singles Chart in the week of the album's release. The dominance of its tracks on the UK chart led to calls for change on how the single chart is compiled, and the Official Charts Company then introduced new rules limiting tracks eligible for entry in the top 100 to three per the main artist, as well as adjusting the streams-to-sales ratio for older songs. His fourth single from ÷, "Perfect", reached number one in the US, Australia and the UK, where it became the Christmas number one of 2017.