In case you're wondering what an EGOT is, it stands for Emmy-Grammy-Oscar-Tony and is basically considered the grand slam of modern entertainment awards.
And he has plenty of Grammys to choose from to round out the EGOT - 10 to be exact, his first being in 2006 for Best New Artist, Best Male R&B Vocal Performance and Best R&B album, with his latest being for Glory in 2016.
At the age of 39, the All Of Me singer has become the youngest ever person to achieve EGOT status - as well as being the first black man to do so. But since it took them 38 years and they won them all for writing musicals, their win is less impressive than Legend's.
They became just the 13th, 14th and 15th people to win all four awards all-time. So happy to be part of this team. So amazed to be in such rarefied air.
Chrissy Teigen crowns the best episode in TV history.
British actor John Gielgud is the oldest to win the award, as he was 87 when he completed the quad in 1991, nine years before his death.
Lopez has actually won each award at least two times.