country star morgan wallen discovered the hard way that when you're famous, there's always a camera aroundu use a racist slur. now wallen tells abc's michael strahan he realizes his words matter. >> there are going to be a lot of people who are going to watch this interview and say, he's only sitting down because he wants to clean up his image, it's all a performance. what do yus you say to that? >> i understand i'm not ever going to make everyone happy. i can only come tell my truth, and that's all i know how to do. >> reporter: in many ways morgan wallen embodies country music. the tennessee native rose to the top of the charts in 2018 with hits like "whiskey glasses" and songs like "seven summers," a celebration of small-town living, good friends, good times. ♪ that was seven summers ago ♪ >> reporter: at 28, wallen is one of the biggest stars in the industry. but earlier this year, all that was called into question when this video, obtained by tmz, became public. it showed wallen and a group of his friends coming home after a night out on the town in nashville. >> take care of this [ b