The 2015 Billboard Music Awards have taken place in Las Vegas each year since 1989 -- save for a brief hiatus from 2007 to 2010 -- to honor the best-selling artists with shiny statues to put alongside their platinum records. The finalists for the 40 chart-specific categories are chosen based on album and digital song sales, radio airplay, streaming, touring and social media interactions.
This year, we're expecting many famous faces as well as the debut of Taylor Swift's Bad Blood music video.
But first, let's take a look back at the previous Billboard winners for Top Arist as you make predictions for Sunday's big event.