そんな気持ちぐらいは誰にでもあるって言われてもみんなニコニコニコニコ生きてるんだから信じらんねえよ

You Say Everybody’s Got Those Feelings, But They’re All Smiling Smiling Smiling, So I Can’t Believe It is a song sung by Teto Kasane. It is the one-hundred-and-eighty-third track in Other Vocaloid Songs 112: Mostly Teto Volume 4.