Why@Doll, also known as Howadoru (ほわどる), was a Japanese female duo formed by Victor Music Arts in 2011 until their disbandment in 2019.

The "at" sign between the two words represents the location and the duo's hope for a friendliness with their fans.

[1] Originally from Sapporo, Why@Doll moved to Tokyo in November 2013[2] and signed a contract with Version Music in 2014.

[5] On July 17, 2019, due to Aoki's poor health, Why@Doll announced they would disband at the end of November.

[7] On August 22, 2021, the duo held a tenth anniversary concert titled "Why@Doll One Night Only Live: Open the Page of Memories" (Veats Shibuya) (Why@Doll One night only live ～思い出のページを開いて～ (Veats Shibuya), Why@Doll One night only live: Omoide no Pēji o Aite (Veats Shibuya)).