冰雪奇缘2主题曲是《Into the Unknown》。
《Into the Unknown》是美国华特迪士尼公司动画电影《冰雪奇缘2》的主题曲、插曲，由克里斯汀·安德森·洛佩兹和罗伯特·洛佩兹作曲作词。
其中，电影版插曲（剧情版）由伊迪娜·门泽尔、AURORA演唱，电影推广曲（片尾流行版）由Panic! At the Disco演唱。歌曲中文普通话版《未知的真相》由中国歌手胡维纳配唱。
歌曲歌词
Ah ah oh oh
Ah ah oh oh
Ah ah oh oh oh oh
I can hear you but I won't
Some look for trouble while others don't
There's a thousand reasons I should go about my day
And ignore your whispers which I wish would go away oh oh
Oh oh
Ah ah oh oh
You're not a voice
You're just a ringing in my ear
And if I heard you which I don't
I'm spoken for I fear
Everyone I've ever loved is here within these walls
I'm sorry secret siren but I'm blocking out your calls
I've had my adventure I don't need something new
I'm afraid of what I'm risking if I follow you
Into the unknown
Into the unknown
Into the unknown
Ah ah oh oh
Ah ah oh oh oh
What do you want 'Cause you've been keeping me awake
Are you here to distract me so I make a big mistake
Or are you someone out there who's a little bit like me
Who knows deep down I'm not where I'm meant to be
Every day's a little harder as I feel my power grow
Don't you know there's part of me that longs to go
Into the unknown
Into the unknown
Into the unknown
Ah ah oh oh
Ah ah oh oh
Oh oh oh
Are you out there
Do you know me
Can you feel me
Can you show me
Ah ah oh oh
Ah ah oh oh
Ah ah oh oh
Ah ah oh oh
Oh oh oh oh
Oh oh oh oh
Oh oh oh oh
Where are you going
Don't leave me alone
How do I follow you
Into the unknown