Donald Trump has called Oscar-winning actress Meryl Streep 'over-rated'.
It's after she criticised him at last night's Golden Globes awards.
In a series of tweets, the President-elect called her a 'Hillary flunky who lost big'.
Streep was given a lifetime achievement award last night for her contribution to film, and used her acceptance speech to slam Mr Trump for mocking a disabled reporter.
You can check out all the best moments from the Golden Globes here.