Michael McIntyre has a treat for you this Christmas when his Big Show, filmed in front of a live audience at the Theatre Royal, Drury Lane, gets festive.

There is a merry performance from Michael Ball and Alfie Boe; Aled Jones is joined by a very special guest as he plays Celebrity Send To All; Unexpected Star reaches epic proportions when Michael surprised an entire choir and there are lots of yuletide games and celebrity guest appearances form Nan (Catherine Tate), Kevin the teenager (Harry Enfield) and more.

This is one Christmas extravaganza not to be missed!

In the penultimate episode of Michael McIntyre's Big Show expect a hilarious night full of celebrity guests, musical performances, comedy and audience surprises.

The legend that is Sting sings a classic and his new single, plus there is comedy from Jack Whitehall and a very special performance from David Brent.

Jamie Oliver plays celebrity Send To All where Michael sends a text of his choosing to Jamie's phone contacts. 'Unexpected Star' has a twist this week when two people from the same family get the surprise of their lifetimes.

This week Rick Astley sings a classic and his new single, Olly Murs performs and two little producers take over the show much to their mum's surprise.

Double gold medal Olympian Rebecca Adlington plays celebrity Send To All, where Michael sends a text to all of her phone contacts. Michael makes a trainee teacher's dreams of performing in the West End come true when she thinks she is helping at an art gallery, but ends up being the Unexpected Star of the show.

This week on Michael McIntyre's Big Show there is comedy from Sarah Millican, Tom Odell performs, and a member of the public is in for a shock when he keeps bumping into his hero!

In addition, Carol Vorderman is in the royal box to play celebrity Send To All and allows Michael to send a text to her phone contacts. A mother of two has her moment in the spotlight when she becomes the Unexpected Star of the show, but not before taking a trip to the Unexpected Bar - where she has a surprise encounter with her idol, Westlife's Shane Filan.

Expect an evening full of celebrity guests, musical performances, stand up, shocks and surprises.

This week there is comedy from funny man Russell Howard, a performance from One Republic and an audience member gets the shock of her life when she plays Soap Or Nope ahead of her 80th birthday.

Furthermore, Alexander Armstrong hands over his phone to play celebrity Send To All, where Michael sends a text of his choosing to Alexander's phone contacts. Michael goes undercover to surprise this week's youngest ever Unexpected Star.

This week there is an exquisite musical performance from Ellie Goulding, an exclusive look at the brand new musical School Of Rock, and a grandfather surprises his grandson with hilarious results.

Plus it's a family affair when Olly Murs plays celebrity Send To All. Michael has fun looking through Olly's phone before sending a text to his contacts. Unexpected Star also returns, but this series it's been taken up a notch.

Tonight Michael makes a firefighter's dream of performing on the West End stage come true.