lead it was written and produced by adam messinger and nasri of the messengers and sir nolan while bieber and ludacris the song's guest feature wrote additional lyrics it was written by bieber sir nolan and nasri of the messengers in collaboration with ludacris who guest features but reached reaching background and composition while bieber and ludacris the song's guest feature wrote additional lyrics this is really unclear it sounds like the are both features and that there is no lead artist apply what i suggested above i know eurodance is sourced in the info box but it seems strange not to include it in the composition info reception i'd say from one of the first reviews it is also a synth pop song out of five stars commented out of five stars and commented the chart performance section is tiny just from reading this it sounds like it only charted in five countries without looking at the table this could be expanded to cover us europe and oceania in more detail debut peak and how many weeks charting track listing not needed only one version charts peaks should be in a separate table to peaks release history being given digital download makes it a single not a promo single promo singles are free and cannot chart so this is questionable the region column needs the same shaded mark up as the charts table refs the first one isn't even formatted ref needs linking for mtv and viacom ref therefore needs unlinking external links some sort of red link all around the world template needs removing status on hold aron