Are You Happy Now

This pensive look back at a former relationship was penned by the Rascal Flatts trio with Sean McConnell back in 2013. It is the only song on Back to Us that the three band members wrote together.

The song features the powerful voice of Lauren Alaina. However the American Idol finalist wasn't the first artist that Rascal Flatts asked to sing on the track. "We wrote the song four years ago and reached out to Taylor Swift, for the Rewind record," Jay DeMarcus told The Boot, "and she said no. And so, we put the song on the back burner for a long time and circled back around this time, cut a new track on it and sort of waited to see who we felt like would be the top of that list to go toe-to-toe with Gary [LeVox], because it's no easy task to find a singer to get in a booth with Gary and match his vocal prowess."

DeMarcus told Billboard magazine that though the Rascal Flatts trio knew what Alaina could do vocally, they were still hugely impressed. "She did so fantastic. It's so difficult to find someone who can go toe to toe with Gary in the studio, and she was phenomenal," he said. "She got in there, hunkered down for about two hours, and knocked it all of the ballpark. She's so delightful to work for. It was awesome."