"Solo" reached number one in the United Kingdom, becoming Clean Bandit's fourth UK chart-topper and Lovato's first number-one song in the nation.<ref>{{cite web|last=Myers |first=Justin|url=http://www.officialcharts.com/chart-news/clean-bandit-and-demi-lovato-take-solo-to-number-1-we-cant-believe-it-__23225/|title=Clean Bandit and Demi Lovato take Solo to Number 1: "We can't believe it!"|publisher=Official Charts Company|date=22 June 2018|accessdate=22 June 2018}}</ref> In Australia, the song has reached number 7, giving Clean Bandit their fourth and Lovato her second top 10 entry in the country.<ref>{{cite web|url=https://www.ariacharts.com.au/news/2018/5sos-hold-singles-chart-1-for-sixth-week|publisher=Australian Recording Industry Association|date=30 June 2018|accessdate=1 July 2018|title=5SOS hold Singles Chart #1 for sixth week}}</ref> It additionally peaked at number one in Austria, the Czech Republic, Finland, Germany, Hungary, Ireland, Israel, Lithuania, Poland, Russia, Slovakia and Switzerland (Romandie), as well as the top ten in Australia, Belgium, Croatia, Denmark, France, Greece, Latvia, Lebanon, Norway, Portugal, Romania, Scotland, Singapore, Slovenia, Sweden, and Switzerland.