Somebody needs to sit this kid down and gently (or not) remind him that once it's on the internet, it's forever.

Chris Brown responded to flak regarding his appearance on Sunday's Grammys with a less-than-humble tweet Tuesday which read:

"HATE ALL U WANT BECUZ I GOT A GRAMMY. Now! That's the ultimate (deleted) OFF."

The tweet was later deleted, but not before Mashable editor Christina Warren took a screenshot of Brown's rant.

Among the many who expressed their disgust on Twitter were celebrities such as Miranda Lambert, Eric Stonestreet, Jack Osborne and Wil Wheaton, who posted, "Everyone who apparently forgot what Chris Brown did to Rhianna should read the police report on exactly what he did."