Billie Eilish

Used in some live performances at gigs and festivals in 2018

Bille is seen adjusting the Neumann TLM 103 on the first clip of this video.

According to sE Electronics' website, Eilish uses the V7 MC1 live.

Billie's vocals for 'Ocean Eyes' were recorded with the 2020, which sounds great. It's not quite as good as the Neumann, but I have never found a microphone that I like more than the 2020 that's less expensive than the Neumann. The 2020 is a really good starter microphone.

(Finneas O'Connell (Billie's brother, producer & co-writer) in Sound On Sound magazine)

Billie is shown here using the SM58, as mentioned. She used it for all of her live songs for 3FM.

FOH Engineer says "For microphones, we’ve been jumping between the [Shure] ULX-D..."

Her brother uses it very often while Billie and him are performing.

Her brother is playing the keyboard while they're performing on Adult Swim.

Her brother (and producer) uses it in his bedroom studio to produce music for Billie.

Her brother used it while performing "bellyache" at the Vevo LIFT Live Sessions.

Her brother's using it in the video while he's producing Billie's new song called "come out and play" in his bedroom.

This is an Apollo Aero that's what I use to plug my mics in

At 2:38 we see Billie’s older brother/producer Finneas using this to compose a song of billies.

At 0:45 Billie's brother mentions his use of Logic. You can also see it pretty much throughout the video.

Shown in their bedroom studio "Some of the most important music of a generation began its journey here, in the family home of FINNEAS and his sister Billie Eilish. The origin story goes something like this: A brother sits at his desk, creating sounds with anything he can find, while his little sister sits on the edge of the bed, singing line after mesmerizing line. No big studio. No entourage. Just a place where honesty roams free"

Finneas at 3:44 in the video says "She had her two Yamaha Hs5's and an HS8S sub on shelves."

Fender tweeted about the custom ukulele that Billie eilish got

Eilish can be seen with an Orangewood Custom Artist Uke in this photo.