If You Know 3 Chords
Start a Band Day is easy.
Pick an instrument you either can already play or would like to play. Find at least one other person and have them do the same.
Decide on a weird name for your group. Select a song to cover or compose your own.
Start playing together. If you have recording equipment available, so much the better. If you need someone to run the recording equipment, hire the first person you see.
Actually, recording your act is more essential than you might think. You need to create a YouTube video that you can post online so it can go viral and you can become famous overnight.
Don't forget to include an advertisement that will play up front on your YouTube video.
Read and respond to every comment your video receives. After all, if someone was thoughtful enough to post a comment, the least you can do is react to it.
Then sit back and enjoy your fame.