The Britain's Got Talent judge is following in Nigella Lawson and Lorraine Kelly's footsteps.
And the UK has only triumphed at the song contest once in the four decades since...
It was previously revealed James would be returning after he was originally meant to represent the UK in 2020.
The HuffPost UK Entertainment team chat Dolly's vaccine, Rita Ora's encounter with Madonna, and Prince Harry's sightseeing tour with James Corden.
After the 2020 Song Contest was cancelled altogether, bosses have detailed how things will play out this year.
All Stars 6 will also air later this year, Drag Race bosses have announced.
The 2021 Song Contest will take place in Rotterdam in May.
It looks like the Ruruvision Song Contest has spawned an actual chart hit.
The 2020 event was cancelled in light of the coronavirus pandemic.
In 2021, we'll have a brand new Song Contest to enjoy, alongside the regular competition.