The happy news was revealed when Elton John announced it to partygoers at his latest White Tie and Tiara Ball, held in London last night (27 June).
Incredibly, Coldplay frontman Chris Martin then joined Elton on stage and performed a duet of 'Your Song', which was dedicated to Matthew and Renee.
Matthew - who plays teacher Will Schuester in Glee - and Renee met at the same event two years ago, so it seemed a fitting way to spread the word!
The couple are currently in the UK to promote Matthew's new album Where It All Began.
When previously asked about marrying Renee, Matthew said: "I hope so, then maybe working on kids. Who knows?"
Matthew's rep confirmed the happy news to Reveal. Congratulations!
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