Billie Eilish performs surprise acoustic show at Amoeba Music in Hollywood

Billie Eilish 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.

Billie Eilish performs surprise concert at Amoeba Records in LA

Fan friendly: Billie 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.

Record store gig: The pop superstar got help in dealing with the swarm of fans at the venue

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

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.

She is currently rocking jet black locks that fell a few inches past her shoulders with bangs and a part in the middle, although at times she wore a baseball cap on backwards during the show.

Billie Eilish poses with brother Finneas at the Oscars Luncheon

Teaser: Amoeba Music shared a two-minute clip of Billie, 20, and Finneas, 24, doing a stripped down version of Happier Than Ever on Twitter

Casual-cool: 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

Focused on Happier Than Ever album: A clip of Getting Older was also posted on Twitter

Fan participation: 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

Released July 30, 2021, Happier Than Ever marked Eilish’s second studio album that hit No. 1 on the Billboard 200 chart.

The Los Angeles native cited self-reflection during the COVID-19 pandemic as the biggest inspiration for the album.

Seven singles were released in promotion of the album: My Future, Therefore I Am, Your Power, Lost Cause, NDA, the title track Happier Than Ever and Male Fantasy. The first three tracks peaked in the top 10 of the U.S. Billboard Hot 100.

Her first studio album, When We All Fall Asleep, Where Do We Go? (2019), ended up becoming one of the best-selling albums of 2019, due in part to the fifth single, Bad Guy, which became her first No. 1 on the US Billboard Hot 100.

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