The `About a Girl` hitmakers feellike a completely different group since their recent line-up change and have enjoyed familiarising themselves with their older records and getting to know new member Jade Ewen
Heidi Range said: "We`ve been rehearsing loads and are enjoying it at last. We feellike a new band learning the songs again.
"I wish we could discuss what we are doing musically more but obviously there`s been so much else to talk about recently and we have to give answers."
In September, the last remaining original member Keisha Buchanan was ousted from the group and replaced by Jade after relations with Heidi and Amelle Berrabah irrevocably broke down.
Although former Eurovision contestant Jade, 21, joined the Sugababes almost immediately after Keisha left, she admits it has taken her a while to settle into the girl group.
Jade explained to Britain`s Daily Star newspaper: "We`re getting to know each other as a band now and I feel I really belong here at last."
The girls are adamant they are not worried by the rumours the original three Sugababes - Keisha, Mutya Buena and Siobhan Donaghy - are to reform.
Heidi said: "There`s room for everyone. We`ve delayed our new album until next year. Hopefully by then we?ll have all moved on and can just talk about music."