Music
Rex Features
The 21-year-old admitted that she was anxious performing the song without the support of band members Fazer and Dappy.
"We do a cover of Natalie Imbruglia's 'Torn', which I do alone," she told the Daily Star. "It's nerve-wracking not having my boys with me."
The singer, real name Tula Contostavlos, added that the trio are always open to working on different projects outside of the group.
"I'm working on a top secret collaboration outside the band right now," she said.
"Everyone in N-Dubz has the freedom to branch out."
N-Dubz were recently forced to postpone three of their live dates after bandmember Dappy was hospitalised with temporary deafness.
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