question about vocals

[LiquiFyah]

i've got a question about vocals and were to find these; was'nt sure were to put this thread but this seemed as the place to be;,

all these prof liquid dnb artist have these wicked vocals in their tracks, eg:
http://www.youtube.com/watch?v=0Wo0BDFupqo
http://www.youtube.com/watch?v=OVk_RP0musM

damn those high women voices just make me fload allong with the track, they just add this lil extra somethinsomethin to the track,

now my question is; where the hell do these guys get these vocals?! i want some!
if anyone knows a good place to get these feel free to share ;D

 

[TongueFlap]

they either use a acapella - try this site > http://www.acapellas4u.co.uk/ or they would record a vocalist.