It's one of the biggest games in world football and on Saturday the next bout of the Real Madrid v Barcelona clash will take place.
With just four points separating second place Barca from their fierce rivals, the tie could be pivotal in the race for the La Liga title.
And there have been some absolute belters between the two Spanish giants throughout the years. We dig out 10 of the best to get us in the mood.
1. Clarence Seedorf, 87, plays against a young looking Pep Guardiola way back in 1997.
2. Louis van Gaal breaks up a fight back in 1999. Peps' involved again.
3. Barca fans show their hate of Figo after his move to Real in 1999.
4. Do not adjust your screen, this is actually a photo of Michael Owen celebrating a goal in El Clasico in 2005.
5. Ronaldinho runs the show in 2007, scoring two beauties.
6. Carles Puyol gives Wesley Sneijder his own style of welcome to El Clasico in 2008.
7. The battle of 2010 saw lots of aggro, including this from Sergio Ramos on Puyol.
8. Barca fans love to mock Jose Mourinho, although it's not clear what this is meant to mean.
9. Sanches wears the white of Real Madrid in 2011, kind of.
10. Finally, Messi scores one of the best goals ever in the Bernabeu in 2011. Even home fans applauded.
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