The former X Factor winner, currently on holiday with pal Chloe Paige, whipped off her bikini top for a seriously racy snap.
Lousia took to Instagram for the saucy topless exposé.
It saw the 19-year-old look wistfully into the distance as she went bare-chested.
She rested her arm on her head while bathing in an infinity pool.
Louisa captioned the Ibiza-based pic: "Morning."
The image certainly made her fans' day, with more than 46,000 of them giving the post a like.
One replied: "Good morning beautiful."
While others gushed about how "gorgeous" and "stunning" the star was.
Louisa has been giving her followers a front row view of her sunshine break.
She wowed in a teeny tiny gold bikini earlier this week.
Her and Chloe also showed off their peachy rears on the beach as they posed with a pal.
She's having one hot summer, that's for sure.