[Photos by: TV Promos/YouTube, Hot Topic]

Earlier this month, we heard the news of the crossover we probably don't deserve but are so glad we're getting: The highly anticipated Scooby-Doo and Supernatural crossover

The crossover isn't the only exciting thing that's happening, though. If you hurry, you can get some merch to wear while watching the episode! 

Read more: Watch the first teaser for the ‘Scooby-Doo’ and ‘Supernatural’ crossover

The ScoobyNatural merchandise has officially made its way onto the Hot Topic website, and we need at least 20 of each shirt. On sale now, you can get your hands on merch that features the Winchester brothers and the Mystery Gang. The best part? Everything is 25 percent off at Hot Topic's website, so you're new merch will be at a bargain price.

Check out some of our favorites below! 

[Photo by: Hot Topic]

This design features the whole team and it's only $15.67 (at the time this article was posted).

[Photo by: Hot Topic]

If you want the main people from each show, this is your shirt! The design features the Winchester brothers with Scooby Doo, and we're obsessed.

[Photo by: Hot Topic]

Featuring Supernatural's popular “join the hunt” tagline, the shirt features everyone in the crossover and it's priced anywhere between $15.67 – $17.17 (at the time this article was posted).

[Photo by: Hot Topic]

Featuring Scooby-Doo with the crossover's title above him, the last shirt is priced at $22.90 (at the time this article was posted).

Yeah, we're pretty thrilled about all of these crossover shirts.

As previously reported, the reasoning behind Sam and Dean's crossover into the world of Scooby-Doo? Dean wrestling with a plushy. The episode will begin showing Dean in a wrestling match with a live plushy. For his efforts, a pawnshop owner offers the brothers a free TV in order to show his thanks. Sam, being Sam, is of course a bit weary of the free gift, but Dean is thrilled about it.

Taking the TV back to their bunker, Dean creates his own version of a man cave: the “Dean Cave.” 

With this being a Supernatural episode, everything is obviously not as it seems, and the brothers and their angelic sidekick Castiel is sucked inside an episode of a Scooby-Doo cartoon. 

“Once they get over their amazement at being in the cartoon, two things happen,” co-showrunner Robert Singer told Entertainment Weekly. “They say, 'We’ve been in a situation like this before with the Trickster and I think we’re supposed to play this out.’ And then they realize they’re in a Scooby-Doo cartoon, which makes Dean incredibly excited because Scooby-Doo was his favorite cartoon growing up.”

The episode will be based on the 1970 Scooby-Doo, Where Are You! episode “A Night Of Fright Is No Delight.” While it's based on the episode, EW cites that the show won't exactly follow the episode. In this version, a new Supernatural-esque monster will make its appearance, and if it's anything like some of the monsters we've seen in episodes past, we're pretty sure it's going to be terrifying. 

According to another co-showrunner, Andrew Dabb, the show's episode will be “pretty dark.” He tells EW that: “They walk into an old episode of Scooby-Doo, but it may end up being a new episode of Supernatural.”

Yeah, we're pretty excited to see just how well the Mystery Gang and the boys in Supernatural team up together with this new monster.

Be sure to catch “Scoobynatural” when it airs Thursday, March 29 at 8 p.m. ET on the CW. Watch a teaser for the episode below!