"Youngblood" is a song recorded by Australian pop rock band 5 Seconds of Summer. It was written by Calum Hood, Ali Tamposi, Andrew Watt, Ashton Irwin and Luke Hemmings with production handled by Andrew Watt and Louis Bell. The song was released via Capitol Records on 12 April 2018, as the second single from their third studio album of the same name. "Youngblood" peaked at the top of the ARIA Singles Chart in May 2018, becoming the band's second number-one single on the chart, spending eight consecutive weeks at the top and becoming the biggest-selling single of 2018 in Australia. Outside Australia, "Youngblood" topped the charts in New Zealand and peaked within the top ten of the charts in eleven countries, including Canada, the United Kingdom and United States, becoming their first top ten singles in the former and latter countries. "Youngblood" has been certified multi-platinum in Australia, New Zealand, and the United Kingdom, platinum in the United States and Canada, and gold in Italy, Belgium and Brazil. At the ARIA Music Awards of 2018, "Youngblood" won the ARIA Award for Song of the Year.[4][5] and is the most streamed Australian song of all time on Apple Music.[6] "Youngblood" sold over five million adjusted copies worldwide within six months of release,[7][8][9] the eleventh best-selling single of all time in Australia.[10][11] and has been honored in the APRA AMCOS’ The 1,000,000,000 List, for having been streamed over 1 billion times.[12]