2016年6月17 日，少城時代宣佈成立影視音樂專項廠牌“燃音樂”之後，又推出了EDM電音廠牌“後天AFTERDAY”。

由張靚穎親自填詞並演唱的廠牌同名主題曲《後天》先在臺灣地區釋出，內地音樂平臺也於10月21日上線

誰讓記憶凋謝

孤獨漫向毀滅

Love me love me

Love me love me

荒誕的理由

When they push me like this

誰能救贖我靈魂的殘缺

讓愛復甦在明天的明天

問一遍又一遍

Who who

They talk about about about about you

They talk about about about about you

Who who

They talk about about about about you

They talk about about about about you

救我 救我

救我 救我

還有誰更膽怯

沒底線的妥協

Help me help me

Help me help me

多無聊的理由

When they killed me like that

誰能救贖我靈魂的殘缺

讓愛復甦在明天的明天

問一遍又一遍

Who who

They talk about about about about you

They talk about about about about you

Who who

They talk about about about about you

They talk about about about about you

救我 救我

黎明之前的魘

Who

救我 救我

They talk about about about about you

They talk about about about about you