K-Pop Time Machine (1)<br />f(x) (Rum Pum Pum Pum)<br />This is the title track of f(x)'s 2nd studio album, "Pink Tape." It's a pop <br /><br />dance song with a free-spirited guitar sound and an upbeat percussion <br /><br />sound. It compares one's first love to "wisdom teeth," which is actually <br /><br />called "love teeth" in Korea. It describes how other teeth are pushed aside <br /><br />to make room for the permanent wisdom tooth, symbolizing new and <br /><br />lasting love.
