'X Factor' runners up Fifth Harmony took their signature harmony to a Lana Del Rey track. The girl group made the song their own, singing accompanied only by an acoustic guitar.The gals delivered a similarly languorous vocal as Del Rey, but with arguably more strength and a hint more soul. It's pretty obvious why despite not taking home the 'X Factor' title, Fifth Harmony have a bright future ahead of them. We bet they did Del Rey -- and Simon Cowell -- proud!