Arguably the best mandolin-driven rock song since R.E.M.'s 'Losing My Religion' -- not that anyone would argue about such a thing -- Imagine Dragons' 'It's Time' has permeated pop culture. The song has shown up in movie trailers ('The Perks of Being a Wallflower') and numerous TV promos ('Major Crimes,' 'Parenthood,' etc.), and Darren Criss even cut a version for the coming season of 'Glee.'

Thanks to the song's success, Imagine Dragons are poised to take flight and breath their inspirational indie rock fire on the masses, building buzz for their full-length debut album, 'Night Visions,' which drops on Sept. 4.