I was just having fun.
I'm actually a trained singing teacher - but you did ask...
My number one tip to ALL singers is HUM.
There are a whole load of things you can do with this simple device - the first is simply to find a note you're comfortable with (and this can change from day to day).
Hum it while counting up to 4 and really listen to the quality of the note - does it stay the same or waver?
If it wavers, you need more abdominal support.
I could go on about using the hum to improve a huge amount of vocal technique really simply - it focusses your attention on the quality of your vocal tone, intonation, breath control, the various parts of your head in which tone resonates - and everything else that is important to a singer, but the best thing is if you discover how useful it is yourself.
Learn how to control your breath using your diaphragm - that's really important too, and will help you sing long notes, get good tone and control.
There was another good tip mentioned above - warming up is ESSENTIAL for a singer.
Humming scales works, before using vocalisations.