Britney Spears tells her critics to 'kiss my beautiful white a**' as she blasts ...

Britney Spears tells her critics to 'kiss my beautiful white a**' as she blasts ...
Britney Spears tells her critics to 'kiss my beautiful white a**' as she blasts ...

Britney Spears was feeling spicy as she slammed her now defunct conservatorship amid her ongoing 40th birthday celebrations in Cabo San Lucas.

The pop superstar showed off some of her favorite dresses on Instagram in front of her Christmas tree while taking aim at her former conservatorship and her restrictive Las Vegas residency.

She instructed her detractors to 'kiss my beautiful white a**' in the salty caption while vowing to live her life as she wanted now.

Not holding back: Britney Spears blasted her now defunct conservatorship and told her critics to 'kiss my beautiful white a**' as she showed off her figure in dress amid her 40th birthday celebrations

Not holding back: Britney Spears blasted her now defunct conservatorship and told her critics to 'kiss my beautiful white a**' as she showed off her figure in dress amid her 40th birthday celebrations

Britney had previously shared a bevy of her favorite dress in front of her Christmas tree on Wednesday, but she liked them so much that she went back for seconds.

Among her looks was a pale pink patterned peasant dress — a style she often favors — as well as a vibrant canary yellow minidress and a sizzling red dress with a plunging V-neck to highlight her cleavage.

'I’m not turning 40 … I’m turning 4 and if any of you haven’t HEARD,' Britney began her caption, before complaining about how little free time she had during her Vegas residency. 

'I did almost 250 shows in Las Vegas for 4 years and went out twice [deep in thought emojis] !!!! With that said … I think I will have to put on my hot little dresses on every night for the rest of my life to break even for working for my family my whole life with only old songs permitted !!!' she continued.

'More classic fashion dresses coming soon to my Instagram … by me … worn by me,' she promised, adding, 'And in the meantime, kiss my beautiful white a** ‘Murica !!!!!!'

No freedom: Britney said she had only gone out 'twice' while doing nearly 250 shows in Las Vegas from 2013–2017 and complained that her conservatorship only let her sing her old hits

No freedom: Britney said she had only gone out 'twice' while doing nearly 250 shows in Las Vegas from 2013–2017 and complained that her conservatorship only let her sing her old hits

Britney's back: She said she would be wearing her 'hot little dresses on every night for the rest of my life to break even for working for my family for my whole life'

Britney's back: She said she would be wearing her 'hot little dresses on every night for the rest of my life to break even for working for my family for my whole life'

Britney's Pieces Of Me residency, which was held at the Planet Hollywood Resort & Casino in Las Vegas, began in December of 2013 and was originally scheduled to run through 2015, but her performances were extended through 2017 thanks to its popularity with audiences.

The songstress has previously complained that she allegedly wasn't permitted by her conservatorship to perform some of her newer material at the string of concerts, and some of her older tunes were performed as remixes rather than in the original arrangements from her studio albums. 

Britney appeared to still be living it up for her 40th birthday in the meantime after hopping on a private jet with her fiancé Sam Asghari on Wednesday.

Although she didn't specify where they were going, she shared a short clip of a mariachi band serenading her on Thursday.

A ballon display in an open doorway leading out to a pool also suggested she was vacation in Cabo San Lucas, as Kourtney Kardashian shared a photo of a nearly identical doorway with a similar arrangement of balloons when she celebrated her fiancé Travis Barker's birthday in the Mexican tourist city earlier this month.

'I’m so blessed and grateful !!!! Tears of joy today,' Britney captioned the birthday clip. 'Thank you for all the b-day wishes !!!! Psss I didn’t even drink the champagne. no lie !!!!'

South of the border: She didn't say where she went for her birthday, but it appeared to be Mexico based on the mariachi band serenading her in a short video

South of the border: She didn't say where she went for her birthday, but it appeared to be Mexico based on the mariachi band serenading her in a short video 

Lookalikes: Britney appeared to be staying in Cabo San Lucas

Almost the same: Her balloon display was in a similarly location to where Kourtney Kardashian celebrated Travis Barker's 46th birthday earlier this month

Lookalikes: Britney appeared to be staying in Cabo San Lucas, as her balloon display was in a similarly location to where Kourtney Kardashian celebrated fiancé Travis Barker's 46th birthday earlier this month

The evening before, Sam shared highlights of a firework show he held to honor the pop star ahead of her birthday. 

In a series of clips he shared on Instagram Stories, Asghari shot a sequence of fireworks from a distance to commemorate the special occasion after whisking the singer away on a private jet.

Sam gushed that it was the Grammy-winning artist's '1st birthday' following the termination of her 13-year conservatorship.

The latest: Britney Spears' fiancé Sam Asghari, 27, shared highlights of a firework show he held to honor the pop star on Wednesday, a day ahead of her 40th birthday

Loved up: Britney Spears and her fiancé Sam Asghari, 27, celebrated her 40th birthday one day early on Wednesday with a loving kiss aboard a private jet

Boom: In a series of clips he shared on Instagram Stories, Asghari shot a sequence of fireworks from a distance to commemorate the special occasion

Loved up: Britney Spears and her fiancé Sam Asghari, 27, celebrated her 40th birthday one day early on Wednesday with a loving kiss aboard a private jet

Earlier on Wednesday the pop superstar and the 27-year-old rising actor put on a loved-up display in sweet photos of them kissing aboard a private jet that they each posted to Instagram.

Britney seemed overjoyed in videos Sam shared to his Insta Stories as he presented her with a B-shaped cake to celebrate her milestone birthday - which he gushed marked her '1st birthday' following the termination of her 13 year conservatorship.

Both Sam and Britney shared their moment of passion aboard the aircraft. They embraced and locked lips in one sweet photo, while another showed them both beaming ear-to-ear for the camera. 

The Toxic singer highlighted her pert derriere in a super-short pair of cutoff acid-wash jeans, which she paired with a white long-sleeve

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