Kacey Musgraves and TLC have also been added
The pop duo have extended their run of UK gigs next summer
The coronavirus-delayed event takes place in Oxford next summer
The group are currently celebrating 25 years since the release of their album, 'CrazySexyCool'
The 'SexyBack' singer says the 1999 track "still hits"
The Danish festival will take place from June 26-July 3 next year
Atlanta trio TLC arrived on the scene in 1992, but it was 'CrazySexyCool', their game-changing second album, that cemented their legend, introducing the world to fly girl fashion and swinging brand of message-driven R&B, while doing things no other girl group had done before. T-Boz and Chilli talk to NME about the landmark album as it celebrates its 25th anniversary