Do you enjoy singing in the shower, oftentimes with a shampoo bottle as the microphone? It doesn't even matter if other people can hear it, it's just so fun! Don't you also love the fact that you sound so so so much better in the shower?
If you love singing in the shower, join! :D
Even if you don't sing, but you hum in the shower, or even just enjoy the idea of singing in the shower, you are welcome to join too!