POP EMERGENCY: Fifth Harmony are about to cock up any chance of a UK hit

Potentially very good girlband Fifth Harmony are coming to the UK. Which is ideal really to fill time between now and G.R.L releasing ‘Lighthouse’. They’re performing on The X Factor in a couple of weeks time, but apparently plans have changed and they are now performing (and releasing) ‘Bo$$’ instead of ‘Sledgehammer’. Which is just…