TOKYO IDOL FESTIVAL 動画まとめ | @BABYMETAL | Doki Doki Morning | Tokyo Idol Festival 2011 | WindleEffect | Reaction |

The band’s first single, “Doki Doki Morning”, originally appeared on Sakura Gakuin’s debut album Sakura Gakuin 2010 Nendo: Message, released on April 27, 2011.
A music video for the song was uploaded to Toy’s Factory channel on YouTube on 12 October 2011, and was released as a DVD single in late 2011, under the independent Toy’s Factory sublabel Juonbu Records.
The music video totaled over 1 million views by the end of 2012