3:04 Alex & Sierra - Little Do You Know (Lyrics) 3:05 Alex & Sierra - Little Do You Know (Official Video) 2:32 Nightcore - Little Do You Know (Switching Vocals) - (Lyrics) 3:02 Alex & Sierra - Little Do You Know (Lyrics) 3:07 Alex & Sierra - Little Do You Know (Annie LeBlanc & Hayden Summerall Cover) 3:41 Alex Sierra - Little Do You Know (TikTok Version Slowed Down) 4:27 2Pac ft. Sierra Deaton - Little Do You Know (NodaMixMusic Mashup) [Sad Songs] 4:27 2Pac ft. Sierra Deaton - Little Do You Know (NodaMixMusic Mashup) 4:19 2pac-- little do you know ( sad love song) 3:09 Alex & Sierra - Little Do You Know (Lyrics) 3:06 [Vietsub + Lyrics] Little Do You Know - Alex & Sierra | FLIPPED 3:19 Alex & Sierra - Little Do You Know (Karaoke Version) 2:52 Little Do You Know - Alex & Sierra (Official DRILL Remix) 3:19 Alex & Sierra - Little Do You Know (Lyrics) 3:19 Annie LeBlanc & Hayden Summerall - Little Do You Know (LIVE) 2:37 「Nightcore」 Little Do You Know - Alex & Sierra ♡ (Lyrics) 3:09 Alex & Sierra - Little Do You Know (Lyrics) 3:16 Annie LeBlanc & Hayden Summerall - Little Do You Know (Live in Houston)