Mentor: Gary Barlow
Bio: Glaswegian Melanie is a session singer by profession - she also dresses as a fairy to run kids' music classes - and amazed the judges at her first audition. She also had jaws heading floorwards at judges' houses, with her version of Paul Young's Every Time You Go Away.
She began singing aged 15, and in her time has worked with the likes of Kasabian, Fatboy Slim and the Stereophonics. A mother of two, Melanie realises the impact that her performances during the X Factor live finals could be profound.
She said: "A couple of days ago I was at home, I was bathing the kids, I was doing the dinner, I was doing the school run and now everything could change."
What we said: "Melanie explained she was known professionally as Fairy on account of running a parent-and-toddler music class – a frustrating gig for a wannabe singer, as in my experience these things consist mainly of shouting, crying and defecating on tambourines, and the children are a nightmare as well. Fairy let all the frustration out on a triumphantly confident version of Janis Joplin's Cry Baby. She had the sort of volume acquired through years of silencing a dribbling rabble. The Glasgow X Factor audience was just one more." (week three)
RT predicts: Could go either way: voters might latch onto her passionate, Joplin-esque style, or they might tire of it quickly and think Melanie should really be singing in a jazz club somewhere. 8th