"Don't Worry" is the debut solo single of English artist Kim Appleby from her eponymous debut solo album. The song addresses the process of getting over being heartbroken. With the aid of her then boyfriend, ex-Bros bassist Craig Logan, Kim launched a solo career with much of her debut solo album composed of songs co-written with Mel, for what was intended to be the next Mel and Kim album. It reached number two on the UK Singles Chart in November 1990 and entered the Top 40 throughout Europe.