Seven one to change and the other six to sing about how good the old one was.
One, but the light bulb has to want to change.
Church
None, the changes necessary will come from within.
Who gives a cluck (I wonder if the moderators will censor this joke merely on the grounds that it is categorically terrible)
Snow White's hymen
Because
Can't catch me - Avicii
Mount Rushmore.
Three. One to change it while the other two argue about how old the old one is.
They don't... they just talk about how good the old one was.
