What album took over two years to create and contained a song written with the help of Julia Michaels?
Sorry (Justin Bieber song): "Sorry" is a song recorded by Canadian singer Justin Bieber for his fourth studio album, "Purpose" (2015). Sorry (Justin Bieber song):  Written by Julia Michaels, Justin Tranter, Sonny Moore, Michael Tucker and Bieber; the song was produced by Skrillex and Blood.
i don't know