Here's your first look at who's on the Royal Variety Performance 2017 line up ahead of tonight's show.
Queen of Comedy, Miranda Hart hosts this year's one-off which will be held in the presence of members of the Royal family.
The event will come from the iconic London Palladium Theatre, which is hosting the event for the 41st time.
Prince William and Catherine Duchess of Cambridge will be in attendance as an array of the best UK and international musical performers, extraordinary theatre and brilliant comedy actors take to the stage.
Royal Variety line up of acts
Acts on the Royal Variety 2017 tonight include the legendary Kelsey Grammer who will be performing, with his cast, an exclusive extract from the new musical Big Fish; plus The Killers, Seal, Louis Tomlinson, The Leading Ladies - Beverly Knight, Cassidy Janson and Amber Riley - and The Script, and Paloma Faith.
Also taking to the stage are, Britain’s Got Talent winner, pianist Tokio Myers; the West End casts of ‘Annie’ and ‘42nd Street’; the incredible Circus Abyssinia; Michael Ball and Alfie Boe; the mesmerising Cirque du Soleil plus comedy from Jason Manford and Tom Allen.
Host Miranda said: "If you don’t mind me I am just going to smash a glass ceiling and be the first woman to host the Royal Variety. That felt GOOD!
"It’s thrilling for me because of that, and because I am hugely proud to be part of such an important event in our comedy and variety heritage as the Royal Variety Performance.
"The young-wannabe-comedian me who watched the show every year, would be just as excited to hear that grown-up me is going to be hosting - only I'll be doing it without the 1970’s pudding bowl haircut that made me look like a young male monk!"
The Royal Variety Performance 2017 airs TONIGHT at 7:30PM on Tuesday, December 19 on ITV.