Post Malone has sold over 80 million records, with hits like Rockstar reaching number one on the Billboard Hot 100 chart. He holds the record for most diamond-certified songs with nine titles.

Now, at No. 8, we remember the year in Post Malone - who resumed his old winning ... including the Hot 100 No. 1s "Circles," "Sunflower," "Rockstar" and "Psycho." But you had to look beyond ...