shake it, shake it, shake it like a Polaroid picture

The brunette nails it. Look for "out the do-o-o-o" The other interpretations leave out "for sure" they simply know, but do not know for sure, and there is no door, they leave but do not walk right out the door. So there is no rhyme with sure and door, the whole attitude of the song is missing, I became discouraged, hardly worth the effort of recording and uploading, but this brunette here is different from the rest, she adheres to the lyrics while retaining their full meaning, maintaining the dance beat and interpreting the whole attitude of the original song. She knows what she is doing.  I wouldn't doubt she taught the blond.