I was gonna say that Cow was Vivica Fox's kid from Independence Day, but I looked him up, and he hasn't had much of a career since the late 90s, so the rest of the clues don't fit. (Ross Bagley, just for the record.)
Probably because she's at or near the peak of her singing career, where most of the other contestants either are on the downward slope, or are known mainly for a different field entirely. Or, let's face it, both.
It was a dark and stormy cake.... (Apologies to Snoopy. 😉)
(And for the record, it's generally assumed that people don't look at episode threads until after they've seen the episode. So spoilers are basically unnecessary in them, unless the spoiler in question is for a later episode. Feel free to use them if that's what makes you more comfortable, but they're really not needed.)
The guide on my cable box only shows one.
(Gentle reminder, discussions about the show's scheduling would be better suited for a different thread. The media one, maybe?)