Let's hear those vocals.
Hire a great DJ with the equipment or allow students who are great with technology to host a karaoke night. This is easier than it may seem. Even on a low budget, schools can utilize YouTube and other online resources to make this happen without hiring someone with the traditional karaoke setup. Make it fun with prizes for best singer, worst singer, and other fun awards.
Bring out the fun with points. You can make this event more exclusive by:
You can also make this an event where students and Houses can earn points for good behavior, dressing up, and more.