Why it worked
The video leverages a popular TikTok trend ('what's in my bag') and personalizes it with music taste, creating relatable and shareable content. The humor and the novelty of generating a collage based on music taste likely drove engagement.
Summary
The creator uses the Shelf app to generate a "what's in my bag" collage based on their music taste, humorously acknowledging their potentially "ugly" taste. The video showcases the app's functionality and encourages viewers to explore their own personalized insights.