Celebrity Vocal Coach and head vocal coach for X Factor UK and Britain’s Got Talent, Annabel Williams brings you her very own app for singers of ALL levels! Annabel has coached everyone from Amy Winehouse, Little Mix, James Arthur, Katy Perry, Kidzbop UK etc and worked with powerhouses like Jennifer Hudson, Nicole Sherzinger, Michael Bolton, Bring Me the Horizon - Oli Sykes, and many more! ... Whether you are a bedroom singer and have always fancied auditioning for a talent show, or if you are a professional singer in your own right, as a recording artist, session or backing singer, wed...