The pop star wrote on Friday (27Aug10), "So now that i finally took over my Twitter page no more corny label tweets......lol! whaaasssuupppp ppl!!!!!

And Rihanna's celebrity pals are elated they can finally connect with the star online.

Katy Perry wrote back to the star: "Finally! Thank God gurl. Welcome to the social networking family of TMI's, emo tweets & no she didn'ts!..."