So, here's my Rhyperior singing idol drawn in her newer outfit. While she doesn't know the move "Sing" and isn't really a dancer (she'd cause "Earthquake" throwing all that weight around) She does have the pipes and the chops to compensate.

However, her family is not very supportive of her dreams, as they mad her evolve into a Rhyperior for a reason completely unrelated to singing and more in keeping with family tradition, which singing isn't a part of.

So, her troubles are two-fold: not only is it considered unusual for a Rhyperior to sing, but her family is opposed to it, as well.