Recording On Garageband

[Jmanp17]

I'm trying to remix a song, and when I record myself sing, there's a buzzing noise. Very steady buzz, that keeps going and never stops. NOTE: I do not use a microphone, mine is built in. Please help me to get rid of it.

 

[steezy1337]

do you get the buzz when using the mic with anything else? also try using an external mic