《breakthrough》是TWICE演唱的一首歌曲，發行於2016年3月22日。以下是《breakthrough》的歌詞：
I can't believe this is happening to me
（Verse 1）
Can't believe what I'm seeing
Feels like I'm floating up above
I'm on the edge of something big
And I'm about to break through
（Pre-chorus）
I've been waiting for so long
For this moment to arrive
And now it's here, it's real
And I'm about to break through
（Chorus）
I'm gonna break through, gonna break through
Gonna break through, gonna break through
Gonna break through, gonna break through
It's time to rise up
（Verse 2）
It's been a long time coming
But now it's time to show 'em what I got
Gonna rise up, gonna rise up higher than ever before
（Pre-chorus）
I've been waiting for so long
For this moment to arrive
And now it's here, it's real
And I'm about to break through
（Bridge）
Oh, oh, oh, oh, oh, oh, oh oh oh oh
Oh, oh, oh, oh, oh, oh, oh oh oh yeah
（Chorus）
I'm gonna break through, gonna break through
Gonna break through, gonna break through
Gonna break through, gonna break through
It's time to rise up
（Outro）
It's time to rise up, 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 yeah yeah yeah （重複）