"Youngblood" is a popular song by the Australian band 5 Seconds of Summer, released in 2018. The track features upbeat pop-rock elements and explores themes of love, youth, and living in the moment. It became a commercial success, charting in multiple countries and resonating with a young audience. The song is part of the band's third studio album, also titled Youngblood. The album showcases a mix of genres, including pop, rock, and electronic influences, and has received positive reviews for its catchy melodies and relatable lyrics.