Bitter! Ryan Seacrest completely dissed Ali G at the Oscars last night

Four years ago, Sacha Baron Cohen rocked up to the Oscars red carpet sporting his Dictator get-up – and then proceeded to spill ash all over Ryan Seacrest's fancy suit.

And after all these years, it seems that Ryan hasn't forgot about it.

While looking for people to interview last night, the presenter spotted Sacha (who dressed up as Ali G) and quickly told his people, "no, no, no," reports the Daily Mail.

The comedian joked about the snub later in the night before going back over to Ryan and interrupting another interview so he could give the disgruntled host a hug. 

Sacha is known to cause a lot of grief – it's how he made his fame – but we're guessing these two will never be friends.