SeSe Foster, Jeanette Akua and Rielle Carrington had all failed to make the grade as soloists in last year's competition so were cobbled together into a girl group for the live finals.
Things weren't looking too great for the group when band member SeSe announced she was five months pregnant just days before the first live performance.
The singer admitted she had hidden her pregnancy from everyone over fears it'd see her kicked out of the show.
“What people don’t know is that I actually found out that I was three and a half months pregnant when I was auditioning and it was the thing of ‘do I just go home or do I just continue with my dream’," she said at the time.
SeSe added: “I didn’t tell anyone, not even Jeanette and Rielle. The producers didn’t know either. I told everyone when I moved into the house.
“I was scared it was going to affect my place in the competition."
The group missed the third week of live shows after SeSe fell ill backstage and the trio bowed out in the following week's results.
Writing on their twitter page yesterday, the girls confirmed: "Just wanted 2 address all our fans properly. The rumours are true.'Miss Dynamix' is no-longer together.
"We are 3 DIFFERENT girls with STRONG personalities nd want different things in our careers and lives. We love and care for each other."
They added: "We will always support each other as sisters do. We are so grateful for our fans and your unconditional support also to x factor for the opportunity they gave us. All 3 of us shared something special,which we'll never forget."
Even Miss Frank lasted longer