Howard Lawrence, one of half of British dance duo Disclosure, admitted that finding time to rehearse has been tricky due to their hectic schedules.
"It's been tough getting things ready as we've been on the road," he told Daily Star Playlist. "So we've been constantly on the phone with Lorde, organising stuff. It was somebody else’s idea to hook up so we haven’t even met her yet."
Disclosure have been communicating with the New Zealand singer-songwriter only "remotely or through Skype" because of the distance obstacle.
Fortunately, the "White Noise" brothers seem unconcerned about the lack of practice with Lorde. "We get a few hours' rehearsal before the performance so hopefully it will come together," Lawrence added. "She was amazing at the Grammys. That gave us an idea of what to expect at the Brits."
Lorde confirmed that she would be teaming up with Disclosure earlier this year by posting a picture of herself with their trademark logo drawn over her face.
Lorde is up for the International Female award. Earlier this week, she announced her wish for radio stations to stop playing "Royals" because she fears listeners will tire of her music before fresh material is released.
Other performers at the Brit Awards this evening include Beyoncé, Arctic Monkeys, Pharrell Williams, Katy Perry, Ellie Goulding, Bastille, Rudimental and Super Bowl star Bruno Mars. James Corden confirmed Beyoncé's appearance on BBC Radio 2 this morning, stating: "Beyoncé. Beyoncé is performing".
Corden is presenting the ceremony for the fifth and final time.
The Brit Awards will be broadcast live from London's O2 Arena from 8pm on ITV