N-DUBZ singer Tulisa has revealed that she performs a cover of Natalie Imbruglia's 'Torn' during their live shows.
But she admitted that she gets nervous as she sings it alone without the support of band members Fazer and Dappy.
She said: "We do a cover of Natalie Imbruglia's 'Torn', which I do alone. It's nerve-wracking not having my boys with me."
The singer, real name Tula Contostavlos, also revealed that the trio are always open to working on different projects outside of the group.
She said: "I'm working on a top secret collaboration outside the band right now. 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.