50 Cent is not one of the many celebrities using Twitter to help raise money for the victims of the Japan earthquake and tsunami.

In fact, he's using the micro-blogging site to make jokes about the disaster!

Friday, he tweeted:

    "Look this is very serious people I had to evacuate all my hoe's from LA,Hawaii and Japan. I had to do it. Lol."

But he clearly got a lot of crap for the joke, because minutes later, 50 tweeted, "Nah this is nuts but what can anyone do about it. Let's pray for anyone who has lost someone."

But the serious moment from the man with 4 million followers was short-lived. Because later, he returned to cracking wise, writing, "Man they made a movie about all this 2012 now you think that was a lucky guess."

50 did have a response to the critics who thought his tweets were in poor taste. "Some of my tweets are ignorant I do it for shock value," he tweeted. "Hate it or love it. I'm cool either way."

Unlike 50, several stars have rallied to raise money for the victims of the devastating disaster. Lady Gaga designed a red-and-white wristband inscribed with the words "We pray for Japan" and an image of the singer's monster paw gesture, which she's selling on her website for $5, with all proceeds going to disaster relief. Charlie Sheen is donating $1 out of every ticket sold from his "Violent Torpedo of Truth" tour. Even the Kardashians got into the giving spirit, using their Twitter accounts to encourage millions of followers to donate to Red Cross.