Billie Eilish

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)

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.

Used in some live performances at gigs and festivals in 2018

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

In this Mix with the Masters Webinar, Finnea's updates us with Billies new microphone chain. A Telefunken 251 into a Rupert Neve Designs 5211 2-Channel Microphone Preamplifier. Timestamp 9:35

I'm sure she's using a shure SM55 mike, but cannot really tell if it's the deluxe version or the simple serie ii but i'll guess it's the deluxe because the middle seems enhanced (that the main difference between the 2 mikes)

for the timing, 3:22 seems the best to see the full microphone from the back

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

In her recent post, Billie was recording with the ELA M251

In the Apple Music interview with Zane Lowe, Billie Eilish and FINNEAS discuss their creative process for the album "Hit Me Hard And Soft." At 39:40, Billie Eilish demonstrates how she recorded and wrote several songs, including "Chihiro," "Birds Of A Feather," and "L’Amour De Ma Vie," using the Audix OM7 Handheld Microphone.

In the YouTube video titled "Billie Eilish: 8 Hours Before My Show | Vogue," it is shown that Billie Eilish uses the Sennheiser MM 435 Cardioid Dynamic Microphone Capsule for her handheld wireless transmitter during a performance on the "Hit Me Hard and Soft" tour. This marks a change from her previous use of the SE V7 MC1, indicating a preference for the MM 435 capsule throughout this tour. The video provides a behind-the-scenes glimpse as Eilish prepares for her concert at Scotiabank Arena in Toronto.

In this YouTube video of Billie Eilish performing at Electric Ballroom in 2023, at 1:45, Billie is seen using the AD2 transmitter with the se V7 MC1.