The heartbreaking news of comic book legend Stan Lee's death has yielded a massive wave of reactions across social media. Fans and celebrities, including many stars from Marvel films, are remembering and honoring the iconic Spider-ManX-Men and Black Panther co-creator with photos, quotes, artwork, GIFs from his famous Marvel film cameos, and more.

Upon TMZ breaking the news, "Stan Lee" almost immediately became the top trending term worldwide on Twitter.

See below for some of the biggest and best posts so far.

We'll be updating as more celebrities post their tributes and reactions.

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