Released single ‘Youngblood’

On 22 May 2018, the album’s title track was released as the second single. “Youngblood” achieved massive worldwide success, and peaked at number one in Australia in May 2018 and stayed on top of the ARIA Chart for eight consecutive weeks. It also stayed at number one on Official New Zealand Music Chart for four consecutive weeks, peaked at number 4 on the UK Singles Chart , and became the band’s first single to reach Canada’s Top 5 and the US Billboard Hot 100 ‘s top 10. In the radio format, it became the band’s first single to peak at number one in the US’s Pop Songs chart and Adult Pop Songs chart, and Canada’s Contemporary Hit Radio chart. The song peaked at number one on US top 40 radio, making 5 Seconds of Summer the first Australian band to top the chart in 21 years. As of 2020, “Youngblood” is certified 11× platinum in Australia, 4× platinum in Poland, 3× platinum in New Zealand, 2× platinum in the US, the UK, Norway, Denmark and Sweden and platinum in Canada, Belgium, and Italy. On 1 June 2018, the band announced that the release date of the album was moved forward to 15 June 2018. Youngblood was a commercial success and debuted at number one in Australia and the US Billboard 200, becoming their third consecutive number one album in both countries. It debuted in the top 3 in the UK and seven other countries. Overall, the album reached the top 10 of 20 countries.