《Really Really》的詞曲由DJ組合Tae Hong & Hui Jie所創作，歌曲的演唱者是防彈少年團。其完整的歌詞如下：
(Korean)
Really really really really really
Really really really really
(English)
Yeah, we the BTS
And we back with a vengeance
Yeah, we the BTS
And we back with a banger
(Korean)
Yeah, 1, 2, 3, 4
It’s another one of those GIRLS!
Really really like this guy, but I ain’t telling him that I love him yet
But it’s time that he knew what’s going on with me now, yeah
(English)
Got a problem? you want a fight?
Oh boy, here we go again now
Girl like yeah yeah and the girls are mad at me now (all in love they want the thing now)
Chasing and they getting, flirting, clapping with the team now (screaming they need some boys to dance)
It’s true! So just relax and let me handle it now (now)
(副歌)
Really really like you, but I ain’t telling you that I love you yet (say it)
I ain’t telling you that I love you yet (say it)
(Korean)
Really really like you, but I ain’t telling you that I love you yet (say it)
But it’s time that you knew what was going on with me now (now)
(English)
It’s complicated? oh well, life is complicated, yeah (I know)
And if you like me then it’s up to you, yeah (it’s up to you)
(副歌)
But if you want my number then just ask me for it now (now) (Yeah!)
And if you like my style then let me hear you say it now (now) (Yeah!) (Yeah!) (Yeah!)
(Bridge)
Take me home, we don’t got to talk too much, and then just pick up and go somewhere new to feel my heartbeat with all the melody for all to be down (don’t you?) girls standing at my door with love on their mind they need someone to listen so come here baby I’ll let you in and just dance for a while with the sunshine (Yeah!) and if you feel alright with the music, come and let me hear you say it now (Now) Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! Yeah! (Now) Now now now now now now now now. (Oh boy here we go again now) Oh boy here we go again. (Oh boy here we go again now) Oh boy here we go again. It’s a new day and I ain’t gonna be lonely anymore. Now now now now now now. Oh boy here we go again. Now I ain’t saying nothing more. So take me home. It’s time for us to run. 真酷 我們的速度 你已經贏了 這片天地。快走吧 我們向自由出發 帶著光芒在每個夜晚和早晨 我站在最高處 所以讓那天的我在每個夢境中更酷一點 你向我伸出手來 把每一個阻礙 打敗在音樂之中 現在我在這一刻 愛來了 我們能去往更遠的地方 去創造未來 和那瞬間的痛感 說再見 現在吧 我喜歡這種熱烈的挑戰 現在吧 我喜歡這份激情燃燒的熱愛 我已經準備好了 去享受這場遊戲吧。這愛如火如荼。你是我最後的歸屬。這愛就是全部。你就是全部。現在就來吧。我要給你最真實的我。別怕現在是我陪你走過。你跟我一起闖蕩世界吧。現在就來吧。你跟我一起走向未來吧。現在就是你和我一起闖蕩世界的時候了。別怕現在是我陪你走過。你跟我一起闖蕩世界吧。現在我已經準備好迎接新的挑戰了。別怕，我們一起走吧。別怕，現在就是我們開始的時候了。別怕，現在就是我們開始的時候了。別怕，現在就是我們開始的時候了。現在就是我們開始的時候了。現在就是我們開始的時候了。現在就是我們開始的時候了。現在就是我們開始的時候了。現在就是我們開始的時候了。現在就是我們開始的時候了。現在就是我們了。我們一起出發吧。一起去向未來吧！我們一起闖蕩世界吧！一起走向未來吧！一起出發吧！