wèi / le / bù / ràng / dà / jiā / gān / gà / tā / zhǐ / hǎo / féng / chǎng / zuò / xì / gēn / zhe / tā / men / yì / qǐ / chàng / gē

为了不让大家尴尬，他只好逢场作戏，跟着他们一起唱歌。

To avoid embarrassing everyone, he had to play along and sing with them.