What is KELP airdrop?

Excuse me, could you possibly enlighten me on the concept of KELP airdrop? I've heard about it, but I'm still a bit hazy on the details. Is it some sort of promotional giveaway? How does it work? Are there specific requirements that need to be met to participate? And how does it benefit the recipients? Could you please explain it to me in a simple and straightforward manner? I'm really curious to know more about this intriguing aspect of cryptocurrency.