OneRepublic is a US pop-rock band (流行摇滚乐队). They became well-known in 2006 with their single (单曲) Apologize. It was their first big hit. Their song Counting Stars came out in 2013. It reached No 2 on the Billboard Hot 100 chart (排行榜). The song is upbeat (积极乐观的) and light-hearted. When listening, your worries will fall away.