What album took over two years to create and contained a song written with the help of Julia Michaels?
Sorry (Justin Bieber song):  Written by Julia Michaels, Justin Tranter, Sonny Moore, Michael Tucker and Bieber; the song was produced by Skrillex and Blood. Purpose (Justin Bieber album):  The album was created over a period of two years, in which Bieber struggled to find a musical direction for recording, scrapping each of these tracks many times.
i don't know