On April 27, 2018, Wallen released his first album, "If I Know Me". The single from the album, "Up Down", was recorded with Florida Georgia Line. According to Wallen, he and Florida Georgia Line got together as they knew each other, and when FGL heard the single, they became interested in a collaboration. The album's third single "Whiskey Glasses" released to country radio on July 30, 2018.