Billie Eilish poses up in an oversized blazer before taking the stage at the Hollywood Bowl


Billie Eilish strikes a pose in an oversized blazer and slip dress before taking the stage at the Hollywood Bowl

Billie Eilish looked glamorous when she took the stage at the Hollywood Bowl on Friday night. 

The 20-year-old Ocean Eyes singer-songwriter took to the stage in an elegant black dress, which brushed the ground and featured a sultry slit in the front.

Chic as ever, she paired the all-black ensemble with a matching oversized black blazer. 

Looking great: Billie Eilish looked glamorous when she took the stage at the Hollywood Bowl on Friday night

She wore her dark black hair in curls down to the tops of her shoulders and brushed it down near her widow’s peak. 

She stood on black boots with a very tall heel which she showed off to the camera by kicking her leg up. 

Rouge was rubbed into her face giving her cheeks a rosy glow. Her light green eyes shined underneath the backstage lights. 

Elegance: The 20-year-old singer-songwriter took to the stage in an elegant black dress

Elegance: The 20-year-old singer-songwriter took to the stage in an elegant black dress

Brushing her shoulders: She wore her dark black hair in curls down to the tops of her shoulders and brushed it down near her widow's peak

Brushing her shoulders: She wore her dark black hair in curls down to the tops of her shoulders and brushed it down near her widow’s peak

Showing off the shoes: She stood on black boots with. a very tall heel which she showed off to the camera by kicking her leg up

Showing off the shoes: She stood on black boots with. a very tall heel which she showed off to the camera by kicking her leg up

Dazzling silver necklaces wrapped around her slender neck, and she wore multiple rings on her small hands. 

She shared on photo from her time onstage where she pointed at one of the musicians in her band, a grin lighting up her face. 

Eilish captioned the photo series, ‘never know how much i love you.’ 

Jewelry: Dazzling silver necklaces wrapped around her slender neck, and she wore multiple rings on her small hands

Jewelry: Dazzling silver necklaces wrapped around her slender neck, and she wore multiple rings on her small hands 

Big smile: She shared on photo from her time onstage where she pointed at one of the musicians in her band, a grin lighting up her face

Big smile: She shared on photo from her time onstage where she pointed at one of the musicians in her band, a grin lighting up her face

Caption: Eilish captioned the photo series, 'never know how much i love you'

Caption: Eilish captioned the photo series, ‘never know how much i love you’

The seven-time Grammy Award winner’s show at the Hollywood Bowl wasn’t her only performance of the day.

She marked the one-year anniversary of the release of her second studio album, Happier Than Ever, by playing a surprise acoustic show at Amoeba Music in Hollywood.

The pop superstar’s brother Finneas, who’s her producer and co-writer,  accompanied her for the intimate noon concert at the popular music store and played an acoustic guitar.

To attend the short set, fans had to buy a vinyl version of Happier Than Ever, poster bundle and a performance admission wristband in-store only at Amoeba.

Fan friendly: Eilish marked the one-year anniversary of her second studio album, Happier Than Ever, by playing a surprise acoustic show at Amoeba Music on Hollywood Blvd. in Hollywood on Friday afternoon

Fan friendly: Eilish marked the one-year anniversary of her second studio album, Happier Than Ever, by playing a surprise acoustic show at Amoeba Music on Hollywood Blvd. in Hollywood on Friday afternoon

The show was announced earlier in the morning, and by 9 a.m. there was already a long line of fans gathered outside the music store located at 6200 Hollywood Blvd.

By around 11 a.m. Amoeba Music announced on Twitter that the ‘@billieeilish event is now SOLD OUT’, and that fans who already weren’t in line should not come to Amoeba Hollywood location.

Reps for the independent music store posted several videos of Billie (born Billie Eilish Pirate Baird O’Connell) and Finneas (born Finneas Baird O’Connell) performing, beginning with a clip of them doing the album’s title track, Happier Than Ever.

Surprise show: The short acoustic set was announced Friday morning on social media

Surprise show: The short acoustic set was announced Friday morning on social media

Long line: Amoeba Music shared video of the long line of fans that had gathered outside the music store ahead of the noon performance

Long line: Amoeba Music shared video of the long line of fans that had gathered outside the music store ahead of the noon performance

A few minutes later they followed up with a two minute clip of the duo doing a stripped down version of Getting Older.

In a sign of her popularity, fans were loud and vocal throughout the short set, and could be heard singing the lyrics to the songs, note for note.

The songstress kept it pretty casual in the fashion department dressed in tan cargo pants with a dark brown, long-sleeve shirt and white sneakers.

Read more at DailyMail.co.uk