The clues: In their clue video, they take the whole Astronaut thing to the next level, with references to flying high and how "not even gravity" can hold them back. There's also a random floating broom, which could be a reference to Wicked (maybe someone with Broadway roots?) or Harry Potter. They also mention that this show gets their "heart throbbing," which could signify that they're a "heartthrob" in the public eye.
Who it could be: The judges guessed stars like Adam Devine, Josh Hutcherson, Lance Bass, and Zac Efron, while some fans think it could be country singer Hunter Hayes based on the voice alone. He also has a song called "Wild Blue," which makes all kinds of references to outer space. Another theory is Jonathan Taylor Thomas based on the circle of life clue (he previously played young Simba in the original Lion King).
