Leigh-Ann Pinnock, Perrie Edwards, Jade Thirwell and Jessy Nelson didn't know each other before Tulisa put them together as a group in 2011.They became the first every group to win during his audition, mixing it up with his moves.Alex took over the lead role in June following Beverly Knight's eight-month run.The role was made famous by the late Whitney Houston in the movie co-starring Kevin Costner.Simon even confessed "this [was] the easiest yes I've ever give".Fast forward to 2015 and he's sold over 10 million records, written an autobiography and is set to take over from Dermot O'Leary as co-presenter, with Caroline Flack, of , Carrie received glowing praise from Randy Jackson, Paula Abdul and Simon Cowell in 2005.
Like many others, it seems Aston was blown away by Alex's performance as singer Rachel Marron.
After the show, Aston said: "I mean wow is the only word for @alexandramusic...
JB Gill, Marvin Humes, Aston Merrygold and Oritsé Williams went on to receive four yes', and made it all the way to the end of the competition, only being beaten by Alexandra Burke.
The band split up in 2013 but have sold over 6 million records in the UK alone and more than 10 million records worldwide.
They also just happen to be the sixteenth richest franchise, having sold 20 million records worldwide.
She's won five MTV Europe Music Award nominations, an MTV Video Music Award and three World Music Awards.