Having scientists perform in bands is a good way of showing that scientists are normal people with interests outside the realm of science and research. The best thing would be, of course, to book a band that already exists, but you can also assemble a group of musical scientists and students for a joint performance. Find a suitable venue and stage.
Target group: Broad, flexible.
Preparations: Find scientists that play musical instruments and preferably are already in a band. Find a suitable stage, organise sound and lighting and market the event.
Challenges: Finding scientists who play music.
Benefits: Easy to organise if you find a willing band. Usually appreciated as a complement to more traditional experiments and dialogue activities.