X Factor champ Louisa Johnson has hit back at claims she mimed her performance on the show.
The reigning champ from last year's series was back on the X Factor a year to the date that she made her live debut in 2015.
Louisa performed her brand new single So Good which is available to download and stream now.
Before the show, the talented teen tweeted: "Buzzing to be back on @TheXFactor next sunday with my new track! ⚡️#Sogood"
She added in a video message on the official X Factor website: "I'm so excited to be coming back home to perform my new single So Good on The X Factor."
But apparently not everyone was happy with Louisa's comeback on Sunday night.
Some viewers accused her of miming - despite showing off her voice live every weekend last autumn - and even branded her a "disgrace".
Louisa hit back at the haters on Twitter, quipping she was "sorry" she could sing live and actually sound good.
"I mean, sorry that i can sing live? Should i be sorry? Lmao." she wrote online.
Fans also rushed to Louisa's defence, with one writing: "Love how people think @louisa is miming simple because they haven't seen anyone sing so f**king good live before."
Louisa's So Good is out now.