Smallville's series finale is happening tomorrow night on the CW, and Warner Bros. is partnering with TVOvermind to help this classic series go out in style.

Warner Bros. has already put the premiere of each season (including this one) on iTunes for free, while offering the first nine seasons at a discounted price. As for season 10, well, that's where we come in. We're giving you a chance to win a download of the entire final season, and all you have to do is tweet.

Since the Twitter buzz around the finale is likely growing, here's what you need to do: had on over to Twitter and make the following post:

I'm following @TVOvermind for a chance to win a copy of #Smallville season 10! http://bit.ly/lcAYtM

And that's it. Seriously, it's that easy -- it's not like you have to fly around the world a couple of times or anything. In fact, compared to the hardship Clark will probably undergo in the finale, this is easy stuff, and the prize is totally worth it. Think you're up to it, Smallville fans?

We'll let winners know that they've won sometime next week, so keep Tweeting until Sunday, May 15 at 9/8c -- that's when the contest ends.

Smallville's series finale, appropriately titled "Finale," airs Friday, May 13, on the CW. If you need to, catch up on any episodes you've missed with the show's episodes on iTunes. In the meantime, get Tweetin'!