You're hosting a party and everyone wants to pick the next song. Build a single-page **playlist voting widget** where anyone can add a song title (and optional artist name), and guests can upvote their favorites.

**What to build:**
- A simple form to add a new song entry (song title + optional artist field, plus an "Add" button)
- A live list of submitted songs, each showing the song title, artist, and its current vote count
- An upvote button (👍 or ▲) on each song that increments its count instantly
- Songs automatically re-sort so the highest-voted track always floats to the top
- A "Clear All" button that resets the entire list

All data lives in-memory or localStorage — no backend, no auth, no accounts. The whole experience happens on one page. Style it to feel like a fun party vibe: bold colors, large text, easy to tap on a phone screen.