Hello,
There is an article by Huffington Post to explain about Treeva Gibson being on the television called "The Voice" where she made the decision to have a coach.
See the link -http://www.huffingtonpost.com/2015/02/26/treeva-gibson-sign-language-the-voice_n_6763340.html?utm_hp_ref=teen&ncid=tweetlnkushpmg00000067
Thanks,
Sheila Montney
Executive Director
Deaf Centre Manitoba Inc