First off ... there are 2 bands called One Direction. Second off ... the unfamous One Direction sued the famous One Direction for allegedly jacking the name. Third off ... now the famous One Direction is countersuing the unfamous One Direction, saying the famous band had the name first.
The famous band now claims it has achieved "global fame and success" and some local knock-off is now trying to ride its coattails. The unfamous One Direction begs to differ.
That's pretty much it.