After cruising through our Rock Star Wars competition at warp speed, Queen and Rush face off in the final round to see who'll have the honor of being crowned the greatest space-themed song in rock history.

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. The field has been halved every week based on your votes, and now only the two spaciest songs in rock history are left.

Our competitors in the final round are Queen's "Flash's Theme" and Rush's "Cygnus X-1," and both songs have faced some stiff competition in recent rounds. Queen took more than 61 percent of the vote against Guns N' Roses' "Rocket Queen" before cruising to a 58-percent victory against Europe's "The Final Countdown." Rush, meanwhile, defeated David Bowie's classic "Space Oddity" to the tune of more than 74 percent before piling up nearly 58 percent of the vote against Styx's eternal "Come Sail Away."

So which of these deep space classic rock masterpieces will win this final battle and claim the title? 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. 21 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 Rush's 'Cygnus X-1'

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