Two of rock's most over-the-top outer space-themed songs face off as Queen's "Flash's Theme" takes on Europe's "The Final Countdown" in this round of our Rock Star Wars Battle.

To try and fill our days between now and the Dec. 18 arrival of Star Wars: The Force Awakens, we’ve tracked down 32 space-themed classic rock songs and paired them off against each other in a series of intergalactic battles. We’re down to four now. The field will be halved every week based on your votes, until only the spaciest song in rock history is left.

Queen's ultra-campy "Flash's Theme" served as the signature song for the equally ultra-campy 1980 movie Flash Gordon. It soared away with more than 61 percent of the vote against Guns N' Roses' "Rocket Queen" to move one step closer to victory.

Europe's 1986 song has also taken on campy connotations over the years, showing up in everything from classic TV shows to insurance commercials. But there's no denying that massive riff, which stomped all over Yes' "Starship Trooper" as it proceeds to the next round.

So which of these deep space classic rock masterpieces will win the right to move on to the finals? You can listen to both tracks below, and vote once per hour in each of the this round’s Rock Star Wars battles until polls close on Dec. 14 at 11:59PM ET. Your choice for our Rock Star Wars champion will be revealed on Dec. 22, 2015.

Listen to Queen's 'Flash's Theme'

Listen to Europe's 'The Final Countdown'

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