2:32 Nightcore - Little Do You Know (Switching Vocals) - (Lyrics) 2:37 「Nightcore」 Little Do You Know - Alex & Sierra ♡ (Lyrics) 2:33 Nightcore - Little Do You Know 2:34 Nightcore \"Little Do You Know - Alex & Sierra\" (Sped up) (Lyrics) 2:31 NIGHTCORE - Little Do You Know (Lyrics) 2:50 Nightcore - Little Do You Know (Remix) | Lyrics 2:33 Nightcore - BEAUZ - Little Do You Know (Lyrics) 2:51 「Nightcore」→ Little Do You Know (female version) - (Lyrics) 3:04 Alex & Sierra - Little Do You Know (Lyrics) 2:47 Nightcore - Little do you know(lyrics) - Switching Vocals - Alex & Sierra - [TwilightTunes] 2:28 Nightcore - Little Do You Know (Alex & Sierra) 2:41 Koe No Katachi AMV - Little Do You Know 2:39 「Nightcore」→ Little Do You Know ( Switching Vocals ) 4:00 Nightcore - You Don't Know (Lyrics) 2:28 Nightcore → Little Do You Know 2:24 Nightcore - Little do you know (lyrics) female version 2:54 Nightcore- Little Do You know||Switching Vocals+Lyrics||Alex & Sierra||