She recently joked that her pet pug was as besotted with Alex as she is, telling Now magazine: 'Bettie's obsessed with him.
Heidi India Range (born ) is an English singer-songwriter.
With the introduction of Heidi Range, former member of fellow English girl group Atomic Kitten, the group began to experience a higher level of commercial success whilst keeping the critical acclaim they had achieved with their debut album.
They released three studio albums before Buena announced her departure in December 2005, leading to Amelle Berrabah being brought in to replace her.
Following the release of their first greatest hits album, the new line-up released two studio albums.
Her former bandmates from the many incarnations of the Sugababes over the years - Keisha Buchanan, Mutya Buena, Siobhán Donaghy, Amelle Berrabah and Jade Ewen - have yet to congratulate her on her big news.
Heidi has however bucked the trend and added a blue bag - a controversial choice given the coordination of the rest of her outfit, but it is Chanel (it's also 2015) so we'll let this one slide.
Sadly Heidi's dress is now sold out, but why not scroll through the gallery below to pick out your own zip detail dress?
Legend spoke of her escaping the group through a bathroom window during a press conference, but sadly for fans of pop gossip, Siobhán later denied that.
The singer-songwriter later revealed that she was actually suffering from clinical depression during this time, and threw herself into solo music projects to overcome it.