At a recent fan signing, hosted by Lovcat on January 24, 2014, Luna revealed that f(x) would have a lot of promotion for their next comeback, which is a relief. I wasn’t a fan of f(x) during the release of Pink Tape, but I’ve heard they only had three weeks of promotion for the album. “Rum Pum Pum Pum”, from what I can see, was their only song promoted on that album. And that album was easily f(x)’s best!