Rascal Flatts and the Backstreet Boys collaborate on a new version of "What Hurts the Most," with the boyband taking the lead vocals. The song, originally a hit for Rascal Flatts in 2006, features a mix of acoustic guitar, drum tracks, and synthesizers. The collaboration gives the song a fresh pop sound, appealing to fans of both groups. The new version stays true to the original lyrics penned by Jeffrey Steele and Steve Robson, making it a standout track on Rascal Flatts' upcoming duets album.
Source: https://tasteofcountry.com/backstreet-boys-rascal-flatts-what-hurts-the-most