But beneath the glossy hair, covetable wardrobe, the dream job and the loving husband, Frankie has been struggling with depression for most of her career.
It's a condition that culminated in her hospitalisation at the end of 2011, amid massive tabloid speculation and Twitter gossip - the rumours ranging from drug addiction to an eating disorder.
The band released their first single "One Step Closer" where it charted at number two in the UK, selling roughly 52,000 copies in its first week.
"Automatic High" was released as the second single from the band's first studio album, and also debuted at number two.
While the 22-year-old is careful not to use the L-word, she insists she's 'very happy' with her new man.
The pair were first spotted together near Bridge's £2million Cheshire mansion in late December - just weeks after Sandford split from long-term live-in boyfriend Dougie Poynter. It's going great with him.'But we're just a normal couple really.
Here, for the first time, Frankie opens up to GLAMOUR about her illness, and her turbulent road to recovery. I don't feel right." The doctor suggested that I get some therapy, but as I walked out, I felt absolutely distraught. I didn't do anything about it until it got to the stage where I was just coming home and going straight to bed. Management had to know, because I needed time off to see my counsellor, but telling them took a long time.
With her due date looming, it's all about comfort for Saturday's singer Frankie Sandford, and it doesn't get more comfy than a pair of Uggs, does it?
Bridge was the only member of the band to get a solo in every chorus of the song.
But unusually Sandford claims she can't remember when they started dating, describing their romance as a 'whirlwind'. To be honest, I'm really not sure how long we've been together, it's all been such a whirlwind... While Sandford is yet to discuss why her two-year romance with Mc Fly bassist Poynter ended, her ex has already said their split came completely out of the blue.