「我們叫他粉靈豆」作者新作!

故事描述：有好人緣就有好的領導力？ 一條十六號橡皮筋，竟然引發了合唱團教室風暴！！ 對哈特來說，成為全六年級最受歡迎的人很多好處。因為大家都會聽他的話，連老師都隨便他要怎樣。

每年聖誕假期結束時，學校都會舉辦一場音樂會。上音樂課時，哈特無聊地玩著一條十六號橡皮筋，恰好射中了梅涅特老師的脖子，老師大發雷霆，決定不管今年的音樂會，讓學生自己來主導，而風雲人物哈特被同學選為新的合唱團指揮。

對哈特來說，一開始好像都進行得挺順利，但是後來同學們就拿出嬉鬧貪玩的本性來啦！不僅如此，大家對於合唱團的合唱表演也是各持己見，意見分歧。合唱團新的領導人哈特能夠處理這團混亂嗎？他是否能完成同學賦予他的使命？梅涅特老師是否會不計前嫌出面幫忙呢？

For Hart Evans, being the most popular kid in sixth grade has its advantages. Kids look up to him, and all the teachers let him get away with anything -- all the teachers except the chorus director, Mr. Meinert.

When Hart's errant rubber band hits Mr. Meinert on the neck during chorus practice, it's the last straw for the chorus director, who's just learned he's about to lose his job due to budget cuts.

So he tells the class they can produce the big holiday concert on their own. Or not. It's all up to them. And who gets elected to run the show? The popular Mr. Hart Evans.

Hart soon discovers there's a big difference between popularity and leadership, and to his surprise, discovers something else as well -- it's really important to him that this be the best holiday concert ever, and even more important, that it not be the last.