Yesterday, March 26, the Supreme Court began hearing arguments both for and against Prop 8, which banned same-sex marriage in the state of California.

In addition to changing their social media profile pics into the Human Rights Campaign's red equality sign, some celebrities tweeted feverishly for the repeal of the proposition, while others took to Facebook to express their support for marriage equality. And over on Tumblr, famous names were invoked to make the point.

Here's a sampling of what we found on Twitter:

 
Queen of the World Beyonce took to Facebook to pen her own letter ...

Beyonce, Facebook

... and people fighting for gay marriage rights stood outside the Supreme Court with handmade signs that hilariously promoted much of the same.

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