"New" - ROXETTE - It Must've Been Love - "Backing Track At Soundback"

www.soundback.co.uk will be featuring a backing track each day. Today's song and featured backing track is "It must've been love" by "Roxette".

http://www.soundback.co.uk/mp3/ROXETTE/It-Must-ve-Been-Love/3057-mp3-backing-tracks.php
Lay a whisper on my pillow, leave the ?????? on the ground,what word is missing in this lyric sequence?
Answer on a post.