RM appearing on "Champion" marks a rare appearance for Korean acts on the rock charts.
BTS' boundary-breaking year of chart accomplishments isn't over yet. The K-pop sensation's leader RM makes his first solo appearance on a slew of Billboard charts thanks to his feature on a new remix of Fall Out Boy's "Champion."
The new track -- that features RM rapping completely in English -- debuts at No. 18 on Billboard's Bubbling Under Hot 100 chart for the chart dated Jan. 6, 2018. The Bubbling Under Hot 100 acts as an extension of the 25 songs that have yet to chart on the definitive Hot 100 singles chart and are just below the top 100 slots. Like the main Hot 100 chart, rankings are based on sales, radio airplay and streaming data. BTS made their first appearance on the Bubbling Under Hot 100 earlier this year when their single "Spring Day" hit No. 15 in February, before sending two entries to the Hot 100 later in the year.