Coulson looked up at the cheering, blinking a bit in the stage lights, straightening, and modestly trying to refuse. Maybe not quiet as modestly as he pictured in his head, shaking his head once or twice before gallantly taking the stage, microphone in hand.
It took a moment or two for him to sync up with the music, swaying slightly, and Bobbi's cheering seemed to work like a volume slider, until he was belting out the song. At the very least, he seemed very confident up there, if entirely out of place, and his head bobbed with the music until he was doing a little shuffle to go along with the singing.