Britney Spears' first song was "Baby One More Time", released in 1998.
"Baby One More Time" was Britney Spears' debut single and the lead single from her debut studio album of the same name. The song was written and produced by Max Martin and Rami Yacoub. It became a worldwide hit, reaching the top of the charts in many countries and becoming one of the best-selling singles of all time.