Yes, you read that right and, no, it's not a belated April Fools' Day prank: for the first time in the contest's history, a non-contestant global superstar is taking to the stage to perform.
Justin will perform the new track 'Can't Stop The Feeling' - which is on the official soundtrack for Dreamworks' animated movie Trolls - during an interval at the Stockholm competition on Saturday, 14 May.
The show's producer, Sven Stojanovic, said: "This is a fantastic opportunity, we are very happy and excited that Justin Timberlake will perform his new song together with his band in our show. It makes it extra special that the Swedish songwriters Max Martin and Shellback have co-written and co-produced the song together with Justin Timberlake."
Exec producer Martin Österdahl added: "We are proud to welcome one of the world's greatest artists! It is an honour and an inspiration to all of us."
Well, it's one Eurovision performer we NEVER expected!
Justin's currently in the UK where he's promoting new DreamWorks animated movie Trolls. He made a surprise appearance at the BAFTAs with co-star Anna Kendrick last night.
Eurovision airs Saturday, 14 May at 8pm on BBC One.
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