Staff at the online video-sharing website are gearing up for the launch of a subscription music service but several record companies are pressing for more royalties before agreeing to sign up.
Now Say What You Want hitmaker Spiteri has joined them, warning that without proper remuneration, songwriters will not be able to earn enough money to survive.
In a statement, released through the British Academy of Songwriters, Composers and Authors (Basca), she says, "Songwriters fully support independent record labels in their fight to get better terms and deals from YouTube. It's about time we all made some noise about the way they negotiate with take-it-or-leave-it deals.
"It might be a little easier for writers like myself who also perform, but for those who do not and now have to rely on streaming income, the current rates are just not enough."