The rockers celebrated at a Jack Daniels event held in a cave known as the Devil's Arse on Saturday (October 6), an experience that they variously described as "surreal", "exciting" and "brilliant".
"It sounded like fun," Vaccines guitarist Freddie Cowan told Digital Spy. "People ask what you're doing this weekend, I say, 'I'm playing a cave called the Devil's Arse'.
"It's a totally new experience and we embrace those... It's really great to do stuff in different places, be put out of your comfort zone, try something new. This is probably the most unique venue we've ever played in."
Meanwhile, Dan White of Tribes said: "We're not into branding or saying what we do in any other way apart from 'We're musicians'. If someone wants us to come play a show, we'll come play a gig, but we won't start wearing f**king trainers.
The Vaccines play Mr Jack's Birthday in the Devil's Arse
"It's just we've been offered to play a cave with our mates in a beautiful part of the country... in 40 years when we're fat, sat on a porch, we'll be like, 'We played a gig in a cave! We got f**king hammered!'"
The Mystery Jets said that the gig was a warm reminder of their time spent in the southern states of America earlier this year recording latest album Radlands.
Mystery Jets frontman Blaine Harrison
"The real good thing about [the South] is that you're getting the real kind of American-ness of America," drummer Kapil Trivedi said.
"You get the whole like people walking around with guns and tassels and Harleys and f**king meat and I don't know what else... [The cave] brings the vibe [of the South], apart from the fact it's f**king cold."
The groups also spoke about their mutual fondness, with the Mystery Jets describing them all as "each other's hoes".
"The Vaccines and Tribes are bands that we've kind of had a bromance with," frontman Blaine Harrison said. "So we're really looking forward to playing with them. The Vaccines are a great band."