The smartphone application is a "social music" service designed for the Facebook Timeline and aimed at nightlife enthusiasts.
It allows users to take a photograph while its music-recognition software identifies the song playing and the handset's GPS pinpoints the location. All of the information captured can then be posted onto Facebook.
Amsterdam Worldwide developed the app for Olmeca Tequila. Exclusive content from DJ Ferry Corsten will be included thanks to an ongoing partnership between the artist and the drinks brand.
Brian Elliott, founder and CEO of Amsterdam Worldwide, said: "NightTag is anything but another branded app. This is a place for stories to be told.
"A late-night social lubricant that is useful, entertaining, relevant and supports Olmeca Tequila's brand in a longer lasting way than any ad impression.
"NightTag helps Olmeca get closer to consumers via mobile technology that enables nightlife lovers to tell Olmeca's story across multiple media. This is a brand platform for the future."
Other features of NightTag include a Listings page highlighting the top dance nights in selected countries, and a Streaming page to help users discover and share new music through Facebook.
Nighttag is available for iPhone now, and will be released for Android and BlackBerry devices this summer.