Play all audios:
The 18-year-old British model shared a seriously sexy video of herself on Instagram doing her daily workout. Captioned: "Every day Butt work out! #WorkThatAss #littleass
#SquatTillYouDrop #fittness #JamesArthur #RosieMac #triomashup @trioapp @jamesarthurinsta23 #getdown," the short clip proves just how Rosie got the job in one of television's
biggest shows. Wearing a skimpy pair of black knickers and a matching crop top, the brunette begins by doing squats with one foot balanced on a chair behind her. She then lays on the floor
with both feet balanced on the chair and thrusts her body into the air, showing off her svelte figure. Rosie Mac appears to be doing her exercise in the surroundings of a plush villa, and
could well be in the sunny location as filming for season six gets under way. Not one to shy away from a sexy snap or two, she treated her followers to plenty of steamy photos over the
weekend - including a few cheeky pictures of herself on the beach. Taking from behind, one shot shows the model covered in sand as she flaunts her pert derrière in a multi-coloured bikini.
Rosie has certainly shot to fame standing in as the body double of dragon queen Daenerys Targaryen. However, it's not just acting and modelling that interests Rosie, as she also plans
to release her very own single later this year.