We don't want to call this a step down for Timberlake, but we're not sure how else you'd phrase it.

Having burst back onto the scene with his new single 'Can't Stop The Feeling' last week, Justin Timberlake has thrown another curveball at the world with the news that he'll be performing as an interval act in the Grand Final of the Eurovision this year.

It will be the first time in the history of the competition that an already famous bona fide star will take part in the show and its organisers are obviously delighted.

Martin Österdahl, exec producer of this year's contest, said: "We are proud to welcome one of the world’s greatest artists! It is an honor and an inspiration to all of us"

"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", said show producer Sven Stojanovic.

It's good news for JT too though, with the show going out to over 200 million people across the world which will pretty much guarantee more streams and downloads of his single and promote the movie it's attached to, DreamWorks Animation's 'Trolls'.

Honestly, we're not sure that Justin Timberlake ever knew or possibly even knows now what the Eurovision is but we look forward to seeing him on stage in Stockholm on Saturday night.