Step 1: Make some room
Vocals are usually recorded last, so once you have sorted the rest of your song, create a new track by heading to Track>New Track.
Step 2: Preset it
Select your newly-created vocal track, bring up its Info pane and select one of the vocal presets. It’s best to stick to one of the basic options. There are different ways to record vocals in GarageBand, so it’s worth knowing the different types of microphones available to you…
Step 3: Lose the reverb
GarageBand piles on the reverb here, so drag that slider back or it will be distracting when the vocalist records, and annoying in the final mix.
Step 4: Input and go
Finally, select your input source from the drop-down box at the bottom of the Info pane. When you’re ready, hit record and start singing!