Lisa Stokke's version of the song -> https://www.youtube.com/watch?v=vONVlXE9LR0
Can we say "La gå" ... (Let go)?
Not with the same meaning. "La gå" is usually used to signal that you are willing to give in to something.
Siri Nilsen has a song by this title.
Hva om 'slipp det'