The original Sugababes lineup of Mutya Buena, Keisha Buchanan and Siobhan Donaghy reunited earlier this year to record a new album together under their new name.
Range - who replaced Donaghy in the group in 2001 - said that she is looking forward to what her former bandmates have come up with.
"I think good luck to them. I saw the girls at V Festival a few weeks back and said hello and wished them all the luck. I've not heard any of the songs yet but I'm sure they'll be great," she told the PA.
"The three of them are brilliant singers, so I'm looking forward to hearing the songs."
The star insisted that there will be no big rivalry between the two groups.
"There have been enough lineup changes and stuff that I think it doesn't make any difference now," she said.
Range also denied reports that the current Sugababes have broken up, stating that they have several projects lined up.
"We've not actually split, we kind of want to take time out and do our own thing," she explained.
"I've been in talks with a few different TV projects at the moment, in talks about some West End stuff. I'm kind of keeping my options open but it's nice and exciting to be looking at different things. It is nice not living out of a suitcase but I love being in Sugababes, it's such an amazing job and I'm so lucky that we've had 11 years so far.
"But it is nice to not be packing suitcases every two minutes and have a normal routine."
Mutya Keisha Siobhan recently promised fans that they will release new music by the end of 2012.
Watch the Sugababes talk to Digital Spy below: