Ace of Angels (album)

Ace of Angels
Regular and digital edition cover
Studio album by AOA
Released	October 14, 2015 (2015-10-14)
Recorded	2014–2015
Genre	Electropop dance-pop
Language	Japanese
Label	Universal Music Japan Delicious Deli Records
AOA chronology
Heart Attack (2015)Heart Attack2015 Ace of Angels (2015) Good Luck (2016)Good Luck2016
Singles from Ace of Angels
"Miniskirt" Released: October 1, 2014 "Like a Cat" Released: February 25, 2015 "Heart Attack" Released: July 29, 2015

Ace of Angels is the debut Japanese studio album (first overall) by South Korean girl group AOA, and was released by Universal Music Japan on October 14, 2015.

To promote the album, AOA embarked on their first Japan concert tour, Angels World 2015 ~Oh Boy Academy~, in December 2015.

After releasing three singles in the Japanese market, including "Miniskirt," "Like a Cat," and "Heart Attack," AOA announced that they will release their debut Japanese studio album titled Ace of Angels on October 14, 2015, including selective eight previously released songs and three new original songs, "Oh Boy," "Lemon Slush," and "Stay with Me."

A music video and a dance version for the track "Oh Boy" were released along with the formal release of the album on October 14, 2015.

Ace of Angels was released in ten different physical versions: A Limited CD+DVD Edition (Type A), a Limited CD+Desk Calendar Edition (Type B), seven Limited Picture Label Member CD Editions, and a Regular CD Edition.

"Miniskirt" is AOA's debut single in Japanese. The single was the first ever Japanese-language track released by AOA on October 1, 2014 in Japan. The short version of music video "Miniskirt" was released on September 8, 2014. The full music video for "Miniskirt" was released on September 10, 2014. The physical single also included the Japanese version of "Short Hair" and the original version of the Korean track "Get Out".

AOA released their second Japanese single titled "Like a Cat" on February 25, 2015. The short version of music video was released on February 8, 2015. A dance version was officially released on February 25, 2015 on AOA's Vevo channel. The physical single included the Japanese versions of "Elvis" and "Just the Two of Us", which were previously available on AOA's first single album Angels' Story (2012) and their second EP, Like a Cat (2014), respectively.

The third Japanese single, "Heart Attack," was physically released on July 29, 2015. The short version of music video was released on July 19, 2015. The full music video was released on the next day, July 20, 2015. A dance version was available on July 4, 2015 on AOA's Vevo channel. The physical single included the Japanese versions of "Confused" and "Joa Yo!", which were previously available on the fourth Korean single album Red Motion (2013) and the first EP Short Hair (2014), respectively.