Ed Sheeran has been very popular lately, after releasing his brand new album 'Divide' and breaking records both overseas and in New Zealand.
Recently he was performing his song 'What Do I Know' for Comic Relief's 'Red Nose Day' and forgot some of the words in the middle of the verse.
Most people didn't notice when it happened, until it was re-watched later on.
The mistake happens 24 seconds in to the video above.
