Morgan Wallen is the No. 1 artist in the US right now, even after famously using a racial slur. Here's a complete timeline of his biggest controversies.

Morgan Wallen.Getty/John Shearer

• Morgan Wallen is currently the No. 1 artist in the US with his album "One Thing at a Time."
• Wallen's chart success comes even after a string of controversies.

Morgan Wallen is having the biggest moment of his career.

The country singer's third studio album, "One Thing at a Time," debuted at No. 1 on the Billboard 200 upon its release on March 3, and has already enjoyed the biggest streaming week of any country album in history.

All 36 of the album's songs are placed on the Billboard Hot 100, including "Last Night," which on March 13 scored Wallen his first-ever No. 1 on the Billboard Hot 100.

In having all 36 songs on the chart, Wallen, who rose to fame as a competitor on season six of "The Voice," has set a new record for most songs on the Billboard Hot 100 by one artist at the same time. The previous record holder was Drake with 27.

Wallen's recent successes come even after a string of controversies, including using a racial slur and being arrested for public intoxication. Here is a timeline of the singer's past behavior.