FIFTH GEAR UP: Syco/Epic's teen Pop femmes Fifth Harmony (aka 5H) are making themselves heard. The premiere of single "Miss Movin' On"—as well as an interview with the toothsome fivesome—was syndicated to more than 100 stations nationwide a few weeks back; the track, showcased on Saturday Night Online With Romeo, gave the show its biggest night yet and became Twitter's top trending topic. 5H, assembled by Simon Cowell after the members appeared individually on season two of The X Factor, will give the song its TV bow with a 7/18 Today Show appearance. An official video for "Miss Movin' On" on VEVO will coincide with the 7/15 launch of the group's U.S. mall tour; the lyric video above has earned nearly a million views already, and prior 5H clips have garnered some 45m views collectively. In other Pop news, a HITS staffer tried to twerk today and suffered a sprained ass. He is now resting comfortably. (7/9p)