The singer showcased her incredible skills through scatting during the improvisation.

scatting 是动词 scat 的现在分词形式。scat 是一种爵士乐演唱技巧，指用无意义的音节即兴演唱，模仿乐器的声音效果。scatting 特指"进行无词吟唱"这种表演方式。