Kids Monsters performing live in Cabo San Lucas
Our Story · Est. 2010

The Family Behind
the Sound

Our Origin

Born Into Music.
Built on Stage.

Five kids. One house in Ensenada. Too many instruments and not enough hours in the day. Growing up Castolo meant music was just how things worked — someone was always playing something, and someone else was always learning to play it better.

What started as family dinners and late-night jams became a career nobody planned but everyone wanted. Five siblings who can finish each other's musical sentences — because they've been doing it their whole lives.

Now they're based in Cabo, booked at places like Esperanza, One&Only, and Chileno Bay — 500+ events in, still treating every show like the first one. The family act that doesn’t feel like a family act. Just a band that’s genuinely great.

These days that means Cabo weddings, destination weddings flown in from everywhere, corporate parties for brands that fly them out just to keep the room moving, beachfront festivals, and the occasional charity gala. Different stage every weekend, same five siblings, same energy.

The Kids Monsters family — all five members together
5Members
15+Years
500+Events
Genessis Castolo
Sax · Guitar · Cello · Vocals

Genessis

Sax for the reception. Cello for your ceremony. Guitar when the crowd needs something unexpected. Genessis picks up whatever the moment calls for and makes it look effortless. She’s been playing since before she could drive — it shows.

Keyboard · Synth · Vocals

Nickeit

Ask him what his favorite genre is. He’ll say whatever the room needs — and he means it. Nickeit reads a crowd in real time and shifts the whole set’s energy before anyone realizes something changed.

Nickeit Castolo
Nirvana Castolo
Bass · Vocals

Nirvana

You notice the bass when it stops. Nirvana keeps everyone moving — quietly, relentlessly, right on time. The real reason people stay on the dance floor longer than they planned.

Guitar · Vocals

Osiris

Osiris has a habit of turning “one more song” into four more songs. He’ll lock eyes with someone in the crowd mid-solo and make it feel personal. Nobody’s ever left upset about it.

Osiris Castolo
Ramses Castolo
Drums · Percussion · Vocals

Ramses

The sibling who kept everyone else in time growing up is still keeping time. Fifteen years later, Ramses hasn’t missed a beat — and neither has the crowd.

“Every night feels like the first time — except now we actually know what we’re doing.”

— Genessis

“I don’t play songs. I play the room.”

— Nickeit

“People come for the music. They stay because we make it personal.”

— Nirvana

“One more song. Always.”

— Osiris

“My siblings play too fast. I make sure they don’t.”

— Ramses

“Every night feels like the first time — except now we actually know what we’re doing.”

— Genessis

“I don’t play songs. I play the room.”

— Nickeit

“People come for the music. They stay because we make it personal.”

— Nirvana

“One more song. Always.”

— Osiris

“My siblings play too fast. I make sure they don’t.”

— Ramses

What We Bring to the Stage

Five People.
Fifteen Instruments.

Every member of the Castolo family grew up playing multiple instruments. The result is a band that shifts formats seamlessly — from a full electric rock set to an intimate acoustic ceremony — without changing personnel, without losing energy.

Genessis

  • Saxophone
  • Cello
  • Guitar
  • Vocals

Nickeit

  • Keyboards
  • Synthesizer
  • Vocals

Nirvana

  • Bass Guitar
  • Vocals

Osiris

  • Guitar
  • Vocals

Ramses

  • Drums
  • Percussion
  • Vocals

All five members sing, creating full vocal harmonies in both English and Spanish across every set and format.

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