Gladio looked down at the blonde with an amused little smile. "What...?" It was then that he caught on to what was playing. His head lifted and tilted a touch, listening to it... There was a constant beat, but it was slow... And he smiled.

"Relax." Gladio returned his focus to Prompto as he changed his hold upon him, and yes, for a moment they just swayed, just until Prompto settled down. "You don't like slower music?" He asked softly, voice pitched low, just for his lovers ears alone.