When you see someone who is always smiling cry - that's how you know it's a BIG moment. You also know that you're definitely going to need some tissues for this one too...
Ellen DeGeneres was honoured by Barack Obama for with a 'medal of freedom'. She was chosen because of her influence on LGBT rights.
In true Ellen fashion, she made everyone laugh before the ceremony went down as she Tweeted her 'whoops' moment:
Photos courtesy of US Weekly, thanks!