偶像练习生主题曲《Ei Ei》舞台公开 IDOL PRODUCER theme song “Ei Ei” debuts on stage! Official weibo: https://weibo.com/u/6382798471 Official Twitter: https://twitter.com/idol2018_qiyi Official Instagram: https://www.instagram.com/iqiyi_idol2018/ Official Facebook：https://www.facebook.com/IdolProducer2018-1900281899999459/