Here's Billboard's descriptions of these charts:
The Emerging Artists chart ranks the most popular developing artists of the week, using the same formula as the all-encompassing Billboard Artist 100, which measures artist activity across multiple Billboard charts, including the Billboard Hot 100, Billboard 200 and the Social 50. (The Artist 100 lists the most popular acts, overall, of the week.) However, the Emerging Artists chart excludes acts that have notched a top 25 entry on either the Hot 100 or Billboard 200, as well as artists that have achieved two or more top 10s on Billboard's "Hot" song genre charts and/or consumption-based "Top" album genre rankings.
The Social 50 is powered by data tracked by music analytics company Next Big Sound and ranks the most popular artists on Facebook, Twitter, Instagram, YouTube, Wikipedia and Tumblr. The chart's methodology blends weekly additions of friends/fans/followers along with artist page views and engagement.
The Artist 100 measures artist activity across key metrics of music consumption, blending album and track sales, radio airplay, streaming and social media fan interaction to provide a weekly multi-dimensional ranking of artist popularity.
Louis is currently serving as a judge on The X Factor 2018. Fans are also awaiting the drop of his debut solo album and looking forward to hearing all the new music he's been working on. You can check out some of the already released tracks as well as some teasers that have been posted here.
Today is the last day to vote for Louis in this round of Billboard's 2018 Fan Army Face-Off. The Louies beat out Miley Cyrus' Smilers and are now competing against Ariana Grande's Arianators.
Fans can vote multiple times daily by going to the Fan Army Face-Off webpage, scrolling down to the bottom right corner, and selecting Louis' name. Scroll back up to the top and click the "vote again" button to cast another vote for Louis. The site will prompt you to enter an email address prior to voting.