Happy Darling

"" is a song from The Idolmaster Live Theater Performance 03 album. It is performed by Anna Mochizuki, presented as her first image song.

The song was written by rino, and composed and arranged by Yusuke Yamamoto. A remix version of the song is included on The Idolmaster Live Theater Performance Remix 02 album, and was done by Giga.

The song was added to The Idolmaster Million Live!: Theater Days mobile game on, as the unlockable song after finishing chapter 13 "The Real Idol" of the main story.

Video
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Lyrics
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Live performances

 * : The Idolmaster 8th Anniversary Hop! Step!! Festival!!! at Fukuoka
 * : The Idolmaster Million Live! 1st Live Happy Performance!!
 * : The Idolmaster Masters of Idol World!! 2014 Live 0222
 * : The Idolmaster Million Live! 2nd Live Enjoy Harmony!!

Trivia

 * During live, when Anna says 応援ください ("Cheer me on, please"), fans shout back 応援するよ! ("We'll cheer you on!").