Gian: (Singing so loud and so terrible that everyone want to cover their ear)
Doraemon: "Oh not again."
Nobita: "I want to leave..."
Suneo: "Mama!"
Shizuka: "This is bad....!"
Kuroemon: "Agh! His singing is so bad!"
Miyoko: "I can't believe that he is such a bad singer."
Kuntakku: "I never know that you have such side, Gian."
Dora the Kid: "This big fat boy is singing much bad than the birds singing."
Wang Dora: "Wo de tian na! (Oh crap!)" (Speaking Chinese)
Shiroemon: "I knew it, I shouldn't follow Kuroemon to the past."
Sewashi: "The singing of my ancestor's friend is so bad."

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As the title suggest, it depicted the scene where Takeshi 'Gian' Gouda (aka Big G in the US English dub) holding his own recital and forcing everyone to listen his terrible (and deadly) singing.

Doraemon, Nobita and their co. aren't the only ones who are forced to listen Gian's singing though, as characters from side stories and movies are forced to listen as well.

The characters in this artwork are as follow:
-The one who singing: Takeshi 'Gian' Gouda (From Doraemon)
-The first group (Left to right): Doraemon, Nobita Nobi, Suneo Honekawa and Shizuka Minamoto (From Doraemon)
-The second group (Left to right): Kuroemon (From Dorabase), Miyoko Mangetsu (From Nobita's New Great Adventure into the Underworld - The Seven Magic Users), Kuntakku/Peko (From New Nobita's Great Demon ~Peko and the Exploration Party of Five~) and Dora the Kid (From The Doraemons)
-The third group (Left to right): Wang Dora (From The Doraemons), Shiroemon (From Dorabase) and Sewashi Nobi (From Doraemon)

Most characters (with the exceptions of the ones from Dorabase and The Doraemons) are based on their 2005 series designs.

As the note, this isn't the first time Kuntakku was featured in my artworks, but oh well.

Doraemon is belongs to Fujiko F. Fujio (Hiroshi Fujimoto), Shogakukan and Shin Ei Animation.
Dorabase is belongs to Shintaro Mugiwara, Fujiko Production and Shogakukan.