Which 1972 David Bowie song introduced his alter ego, Ziggy Stardust?

The 1972 David Bowie song that introduced his alter ego Ziggy Stardust was 'Starman.' The song was released as a single and later included on Bowie's album 'The Rise and Fall of Ziggy Stardust and the Spiders from Mars.' The album was a commercial and critical success, and Ziggy Stardust became one of Bowie's most iconic personas. The concept album tells the story of Ziggy Stardust, a rock star who acts as a messenger between Earth and space, and features several other hit songs such as 'Suffragette City,' 'Moonage Daydream,' and 'Ziggy Stardust.'