This weekend dozens of musicians and artists will come together, virtually of course, to collaborate with Lady Gaga for a Covid-19 relief concert.
Supporting frontline healthcare workers and the World Health Organisation, Gaga has rounded up an impressive line-up of international artists including Paul McCartney, Billie Eilish and Michael Buble.
Along with charity Global Citizen, the concert will consist of a six-hour pre-show available to stream online, before a two-hour main event airing both online and on television - you can access the pre-show and main event in the UK, as well as tune into a UK-version on the BBC, read more on that below.
Lady Gaga has already raised £28m to buy protective equipment and support medical efforts and this concert is not a telethon for the public to fundraise, but to entertain and share messages of solidarity.
"Put your wallets away... and sit back and enjoy the show you all deserve," the singer said. "You're putting yourselves in harm's way to help the world and we all salute you."
Where can I watch it in the UK?
There are two options to tune into the Together At Home concert here.
You can stream the Saturday, April 18 event, live, on Amazon Prime Video, Facebook, Instagram, TuneIn, Twitch, Twitter and YouTube; with Apple, Music, Apple TV, and Apple Beats 1 joining for the main show. The pre-show starts at 7pm BST and the main show starts at 1am BST.
Or, you can wait and see the BBC's UK version at 7.15pm on Sunday, April 19 on BBC One. This will catch up with the performances from the US and have extra performances from some of the UK's hottest acts.
The show will also be available on iPlayer, with additional footage from the US event, for 30 days.
Celebs thank the NHS
What's the line up?
There's a huge line-up of A-list, global stars for your entertainment, including singers and musicians, comedians, actors and personalities like David and Victoria Beckham and chatshow hosts like Ellen Degeneres and Jimmy Kimmel.
Live performances will come from the likes of Jennifer Lopez, Sir Elton John, Stevie Wonder, Taylor Swift, Billie Eilish and Sir Paul McCartney.
You can see Lady Gaga's full line-up here...
Then for the BBC's broadcast on Sunday evening, there'll be a few more British stars added such as Little Mix, Sir Tom Jones and Rag 'N' Bone Man.
Dermot O'Leary, Clara Amfo and Claudia Winkleman will host highlights from the US show plus performances by UK stars and interviews with health workers.
All performances will take place via video, of course.
Find out more about One World Together At Home, here.