A's Doll House is the second extended play by South Korean singer Ailee.

On July 12, 2013, Ailee released the album, A's Doll House, as well as the music video for "U&I".

[1] The Japanese version of the song U&I is also the second single by Ailee in Japan, which was released on March 19, 2014.

[2] Promotions for the album started on July 12, on KBS's Music Bank.

Countdown, MBC's Music Core and Show Champion, and SBS's Inkigayo in July.