Released on the 2005 reissue of their debut album, 'Who's That Girl?' stands as a defining track in the Eurythmics discography, showcasing Annie Lenon's distinctive vocal style and the duo's signature synth-pop sound. The song captures the band's early 1980s aesthetic, blending electronic textures with emotional depth that became central to their identity. As a staple of their live performances and a key part of their catalog, the recording reflects the era's shift toward more polished production while maintaining the raw energy that characterized their initial breakthrough. It remains a significant song in their body of work, often cited alongside hits like 'Sweet Dreams' as a prime example of their innovative approach to pop music during the synth era.