WTG! *applause* (I agree with you on the grammar, though.)

It is perfectly reasonable that the imagined child who made this wrote "You R a Star" and did not leave enough room for there to be a space between the words in consideration of the fact that they write their R backwards. I prefer to think of it as a child who is on the right path cognitively speaking than to assume that TS really failed to proofread before releasing a product.