In her most recent Instagram post, Billie Eilish put on quite a show with her rare mirror selfies looking quite different from her usual self during concerts or even when she's spotted on the streets- will she break the Internet for the third time?

The 20-year-old singer certainly took the leap in wearing a low-cut green top that revealed some cleavage in two photos posted to her Instagram account on Monday. 

In the seductive photographs, Billie regarded a mirror with her jet-black hair slicked back into a sloppy ponytail and her bangs grazing her eyes. 

She looks as if she's wearing at least a layer of scarlet blush and mauve lipstick. 

Her curling eyelashes highlighted her blue eyes. 

The singer also wore an off-white checkered blouse and many silver necklaces, which gave her outfit an edgy twist. 

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She captioned the two photographs with an emoji of a mushroom and a bouquet. 

These rare selfies of Eilish looking quite sexy and unabashed, happened shortly after the award-winning performer commemorated the one-year anniversary of the release of "Happier Than Ever," her second studio album, with a surprise acoustic performance at Amoeba Music in Hollywood on Friday. 

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Finneas, the brother of the pop diva and her producer and co-writer, accompanied her and performed acoustic guitar at the private lunchtime gig at the popular music store. 

"Happier Than Ever," which was released on July 30, 2021, debut at No. 1 on the Billboard 200 chart.

Billie was nominated for five MTV Video Music Awards, including Song of the Year, because of this album. 

The VMAs will be held in the Prudential Center in Newark, New Jersey on August 28. Tuesday marks the beginning of fan voting in 22 categories at vote.mtv.com. 

These rare selfies can lead to impending backlash and violent reactions - or the opposite. So far, many are just stunned and saying how shocked they are.

After all, Eilish has truly grown up now and people already respect that she has her own style and cannot be tied down to just one. But still, one can distinctively remember how she broke the Internet twice in the past, and even lost followers in the process whenever she tried to change her looks. 

She broke two Instagram records after debuting her bleach blonde hair, with the image of her Vogue cover breaking the record for the fastest photo on the platform to receive one million likes - she did so in less than six minutes. 

Billie reflected on the criticism she received for her controversial photograph earlier this year in her fifth annual interview with Vanity Fair, which was published this week. 

Critics called the singer's Old Hollywood-style cover 'disingenuous' and 'tacky,' and she lost 100,000 Instagram followers as a result (despite also breaking records). 

Billie joked: "I lost 100,000 followers, just because of the boobs."

"People are scared of big boobs," she added. 

The cover shoot was a sharp departure from her normal casual, baggy style, which many saw as an effort to avoid being too sexualized.

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