There used to be a video on YouTube entitled "Kings of Leon - In depth gear interview" that looks to be unavailable now. In that video, Caleb said:

"Gibson, 1972, ES-325. And I've got another, I've got a b...

"I started with an AC15, a Vox, but eventually I went to an AC30 and then a Matchless. And then I got tired of all the big noise and I went back to the AC30. And I think I might be back at the AC15. If not, I've got four AC15s, four of the last ones, made and I'm going to make a room out of it. I...

VOX amps USA shared a photo of Kings of Leon performing live at The Governors Ball Music Festival 2013. Behind Caleb Followill, his two Vox AC15 combo amps can be seen. The photo is captioned:

Caleb Followill rocking two AC15s on-stage with Kings Of Leon at Governors Ball M...

"Caleb is playing the Matchless 2x12s DC. It’s kind of cool, it's its own thing. It's got tone selector switches, it sound can't really dial out the middle, bass, and stuff like that. It just gives you what it gives you. It's pretty good though, pretty loud if you want it to be," says Caleb Follo...

"...eventually I went to an AC30 and then a Matchless. And then I got tired of all the big noise and I went back to the AC30."

Caleb used a Black Tele for the California Waiting EP. He talks about this at around 1.13 in the video.

"Caleb plays a Hummingbird, this is a nice guitar. He just got it not too long ago in Australia. It's deep and rich. Gibson hooked us up," explains Caleb Followill's guitar tech around 2:19 into this video.

"We have an MXR which we use for more verb," says Caleb Followill's guitar tech.

In a Mix article, front-of-house engineer for Kings Of Leon Brent Rawlings reveals that while touring for the Only by the Night album, the vocal mics the Followills used are Sennheiser e 935s. Original article can be found ...

An MXR M-102 Dyna Comp Compressor Pedal appearsin this video at 5:16 in Caleb Followill's gear rack.

Caleb has started using this acoustic guitar live and can be seen with it trough the video. He no longer seems to use the Gibson Hummingbird.

"This is kind of like a Fulldrive MOSFET. It's real beefy and crunchy. It sounds really good," says Caleb Followill's guitar tech.

During this photo in the official Kings of Leon instagram account, somebody in the crew made this shoot from the backstage before the band joined the stage in Zagreb, Croatia. A pair of AC15C1-CMs amps are know to be played by Caleb, as the Matchless is used by Matthew Followill and is found in o...

A Boss TU-3 Chromatic Pedal Tuner appears at 5:02 in this rundown video of Caleb Followill's rig.

Caleb Followill's guitar tech points out at 5:09 a Boss TR-2 Tremolo Pedal used by Caleb Followill.

Caleb and his band (Kings Of Leon) use Sennheiser MD 431 for vocals.

Used for vocals on Because of the Times and Only by the Night, as featured in this June 1, 2007 Mix Online interview and as visible in the "Only by the Night Home Videos" series by Kings of Leon (particularly ...

at the video supersoaker we can seen at the minute 2:55 the pedal

Used for the electric guitar on Only by the Night, as stated by producer Jacquire King in this December 2008 Sound on Sound interview.

"We had five or six guitar amplifiers available for each guitar, and again, we picked the ones that were most appropriate f...

Used for Only by the Night, particularly on "Sex on Fire", as stated by producer Jacquire King in this July 31, 2019 interview with producer Warren Huart at 1:27:49.

Huart: And then the Selmer you were talking about that got used on the album quite a...

In this YouTube video at 0:26 to 0:31 and 0:36 to 0:38, Caleb Followill can be seen using Visual Sound Liquid Chorus

"The Voodoo Lab ground switcher runs back into a rack," says Caleb Followill's guitar tech.

"It kind of sounds like an organ because it's a polyphonic generator," says Caleb Followill's guitar tech.

At 0:01 the Tiny terror Sits behind Caleb as his main Guitar Amp.

Used for the vocals on "Sex on Fire", as stated by Only by the Night producer Jacquire King in this December 2008 Sound on Sound interview. An image of the item can be found ...

Used for vocals on Because of the Times, as stated in this June 1, 2007 Mix Online interview.

Caleb Followill sang into a Shure SM57.

An SM57 was also used for the electric guitar and vocals on Only by the Night, as mentioned p...

Used for Followill's electric guitar on "Sex on Fire", as stated by Only by the Night producer Jacquire King in this December 2008 Sound on Sound interview.

"We had five or six guitar amplifiers available for each guitar, and again, we picked the ones that w...

Used for Followill's electric guitar on "Sex on Fire", as stated by Only by the Night producer Jacquire King in this December 2008 Sound on Sound interview.

"We had five or six guitar amplifiers available for each guitar, and again, we picked the ones that w...

Used for the vocals on "Sex on Fire", as stated by Only by the Night producer Jacquire King in this December 2008 Sound on Sound interview. An image for the vocal settings can be found ...

Used for the vocals on "Sex on Fire", as stated by Only by the Night producer Jacquire King in this December 2008 Sound on Sound interview. An image of the item can be found ...