The series is being hosted by safe pair of hands Bradley Walsh – who gets his own jazzy entrance.
The Chase favourite is also known for his swing music, having released his debut album Chasing Dreams last year, and he steps onto the Palladium stage singing Judy Garland hit Get Happy.
Walsh is just the beginning though – he has an array of talented acts in tow.
The first show has some impressive names involved – including singer Emeli Sande, set to perform a hit from her second album Long Live the Angels.
Continuing their fully-fledged comeback is Steps, the Nineties pop group who are releasing their fifth studio album Tears on the Dancefloor this Friday.
The five-piece are set to give their first live performance of latest single Scared of the Dark – which sounds like it was zapped through a wormhole right from 1999.
On a more theatrical note, Ben Forster is bringing a taste of the current production of the Phantom of the Opera, while The Techtonics are bringing their acapella arrangements.
But this isn’t just a singing show. Bringing the variety to Tonight is magician Pete Firman, who says it was ‘a kick’ to take to the iconic stage.