Coldplay and Lil Nas X have been forced to pull out of the event after members of their teams have tested positive for coronavirus, while the new Omicron variant sweeps the nation.Fans have been left fuming after the radio station confirmed the sad news that two of their biggest acts of the weekend have now pulled out of the event.Capital FM also confirmed that there will be stand-ins, with Arrdee and Tom Grennan now playing, as well as Justin Bieber and Ed Sheeran set to perform longer sets.Taking to their website to share the news, Capital said: "Sadly we have to announce that Coldplay and Lil Nas X have had to pull out of performing at this weekend’s Jingle Bell Ball with Barclaycard."Both acts have had members of their teams test.