The lineup for the night one of the musical extravaganza is looking pretty impressive with Ariana and Nathan joining a bill that includes Jess Glynne, David Guetta, Jason Derulo and Years & Years.
Ariana will jet into London especially for the Capital Jingle Bell Ball with Coca-Cola, and will no doubt perform all her smash hits including 'Problem', 'Break Free', and 'Bang Bang', as well as 'new single 'Focus'. She previously played at Capital's Summertime Ball with Vodafone this year.
Night one of Jingle Bell Ball takes place Saturday December 5th at London's O2 Arena.
So far, the lineup for Sunday's event is still top secret apart from Little Mix, who are the first confirmed act. Dave Berry and Lisa Snowdon will reveal more of that day's lineup on Thursday's Capital Breakfast Show.
Last year, more than 30,000 fans attended the event in London to watch acts like Taylor Swift, Sam Smith, Ed Sheeran, Take That, 5 Seconds of Summer and Jessie J perform.
Ashley Tabor, founder & executive president, Global said: "Only Capital can bring the world's biggest hit music superstars together this Christmas. Today we announced an amazing line-up for night one of Capital's Jingle Bell Ball with Coca-Cola and tomorrow we'll be revealing the line-up for night two. I can't wait to see how our listeners respond. Once again, the biggest music stars on the planet are jetting in for Capital as we help our listeners get closer to the stars this Christmas. It really is going to be the hottest event this festive season."