Hear Gary Allan's R&B-Influenced 'Hangover Tonight'

Although the title of Gary Allan’s slow-burning new single, “Hangover Tonight,” suggests something hardcore country, the tune itself is more of a throwback to classic R&B. The song was penned by Allan with Chris Stapleton, Jesse Frasure and Cary Barlowe, with Stapleton also providing soulful vocals to the track.

The first…