Sing along with good vocalists, and sing for people. Drink lots of honey. Don't smoke. Breathe with your stomach, not your chest. etc etc.
Sing fast? Tell your band to play everything 150bpm. Here are a few goodies: 1) Breathe like a mofo 2) Sing standing up (as opposed to sitting on a stool ...or hunched over a bottle of Jack Daniels). It gives your lungs extra capacity. 3) Before your gig, go find a private room and do voice exercises (your lowest note to your highest note & back again). You'll sound like an idiot, but it's better than sounding like an idiot on stage. 4) Hehe, this one's funny but it works... if you can't do vibrato, simply hold a note and shake your fist really hard. No one will ever know. They'll just think you're being all emo.
always try to hit every note when singing(obviously), No one likes a robot for a singer (unless your styx i suppose). Along with singing with other singers, put the volume down so you can hear yourself, so you dont think you are singing it right, and you know you are.
you are all talking about singing good and hard. that has nothing to do with fast. but like spaceduck said, play everything at 150-200 bpm exercise your lips, tongue and throat. you will be able to make more syllables faster if you have more developed mouth muscles.
Playing harmonica, I've noticed, is great too. I think he meant he wants to learn fast. You gotta practice, dude. Nothing comes fast.
