One Less Problem! Ariana Grande gets sassy while displaying her toned figure in a LBD in new Instagram snaps

PUBLISHED: 01:43, 19 February 2015 | UPDATED: 08:33, 19 February 2015

She's had a rough start to the week, with Australian indie band Safia slamming the artist's One Last Time music video - claiming she copied one of their clips.

But Ariana Grande proved she's not one to mess with as she took to Instagram on Wednesday to share some fierce yet sexy snaps.

In both pictures, the 21-year-old songstress is showing off her svelte shape in a figure-hugging black and beige dress. The fitted sleeveless frock features a lacy bodice and sweetheart cut neckline.

Fierce: Ariana Grande showed her sassy side in a new Instagram post on Wednesday

Her luscious brown locks are styled in a ponytail, as her eyes are made to pop with dramatic black liner.

The Love Me Harder hitmaker is sprawled out on a fluffy white linen-covered bed, with a pair of sky-high black heels resting nearby.

One shot, captioned with only symbols, captures Ariana making fists with her hands, aggressively aiming the left one at the camera while covering her lips with the right.

Yet, the Problem crooner proved she's still a lover by posting a captionless upside-down image of herself making a kissy face with her plump pink lips.

Lover: Another image captures the star making a kissy face at the camera

On Monday, Safia took to their official Facebook page with claims Ariana's One Last Time music video, which she released on Sunday, imitated one of their own clips.

But less than two days later, the band - consisting of Ben Woolner, Michael Bell and Harry Sayers - appear to have had a change of heart, informing fans the similarities between the American singer's clip and their own music video for song You Are The One could simply be a 'coincidence.'

'Firstly, we want to thank all of our fans and friends for caring enough about our work and pointing the similarities out to us,' the band began its Facebook post on Wednesday. 'We love that you are as passionate as we are about originality and creativity.

Too similar? Ariana's One Last Time film clip, left, was released on Sunday, and Australian band Safia said it was similar to their's titled You Are The One, right, which was released in September last year

'That being said, while we do find an uncanny similarity in certain parts of the two clips, there’s no way of ever proving whether Ariana’s clip was influenced by ‘You Are The One’ and it genuinely may have just been a coincidence,' they continued.

Explaining their previous Facebook posts were not aimed at targeting Ariana or her label personally, the band said it was just using the social media space as a platform to express their own concerns.

'We were simply voicing our concerns in what is sometimes a common occurrence in the music industry,' the post continued, later adding, 'we're ready to move on from this.'

Safia's video for their song You Are The One was uploaded in September.

Ariana Grand sings One Last Time on Jimmy Fallon