Louisa Johnson is ''so excited'' to reveal her new single 'Best Behaviour'.

The 19-year-old musician - who was crowned champion of the popular talent show 'The X Factor' in 2015 - has taken to social media to share the news about her upcoming track and her feelings towards the release.

Alongside a clip of her music video, which was shared on her Instagram account, she wrote: ''My new single Best Behaviour is here! So excited for all of you guys to finally hear it. DOWNLOAD IT NOW! (sic).''

And the golden-haired beauty has even broadcasted the news on her Twitter account.

She tweeted: '' Aaaaahhh! #BestBehaviour is officially out, Go! Go! Go! http://Smarturl.it/LJBestBehaviourIT ... (sic).''

Louisa has no doubt had a busy few months ahead as she has been signed to IMG Models, and the star is ''so excited'' for her future with the agency.

Speaking about her latest venture, she said: ''SO happy to announce that I've been signed to @imgmodels! So Excited for my future with them:@derekkettela @IMGmodels (sic).''

And she feels ''so lucky'' with the projects ahead.

She tweeted: ''Feeling so lucky (sic).''

Meanwhile, Louisa has revealed she would love for her second album to explore different music genres and is desperate to record a grime song.

The 'Tears' hitmaker previously said: ''I love so many different styles of music, where I grew up it was always about rap music.

''I would love to try different things with my second album, as the pop route might not work.''