 " Tears Run Dry " was originally an instrumental by Crada and later on strings were added . The song is a ' venting ' record , where Tinie shares personal thoughts and then turns into a heavier finale . According to Tinie it was amended about 37 times due to constant adjustments and improvements . " Lost Ones " is about a couple splitting up but trying to maintain their pride , and then realising that in reality they do regret it . Paloma Faith recorded an " eerie " vocal for the chorus . Apparently Tinie wanted a part of the album to be motivational , and conveys this with the songs " Children of the Sun " , " A Heart Can Save the World " and " Heroes " . Emeli Sandé features on " A Heart Can Save the World " , and also wrote Laura Mvula 's chorus for " Heroes " . Sandé also appeared on the Disc @-@ Overy track " Let Go " . All three tracks are produced by Naughty Boy , a frequent collaborator with Sandé . 
