Millie has had 2 concerts.

Millie is most often considered to be Pop, Reggae, Ska, UK Contemporary R&B, Dub Techno, Puerto Rican Pop, and Latin Ballad.

The last Millie concert was on April 15, 2022 at Empire Polo Club in Indio, California, United States. The bands that performed were: Lil Baby / The Weeknd / Big Sean / Billie Eilish / Disclosure / Harry Styles / 21 Savage / Flume / Carly Rae Jepsen / Swedish House Mafia / Doja Cat / Joji / Daniel Caesar / Fatboy Slim / Mika / Hot Chip / BROCKHAMPTON / Stromae / Caribou / Megan Thee Stallion / Duke Dumont / Jamie xx / Denzel Curry / Conan Gray / girl in red / Jessie Reyez / Wallows / Alec Benjamin / Steve Lacy / Run the Jewels / Olivia O'Brien / Dave / Louis the Child / Karol G / Isaiah Rashad / Phoebe Bridgers / Cuco / Madeon / Bishop Briggs / Duck Sauce / Masego / Maggie Rogers / Still Woozy / Belly / The Avalanches / BadBadNotGood / Danny Elfman / JID / Freddie Gibbs / Anitta / City Girls / King Gizzard & the Lizard Wizard / Cordae / Måneskin / Hayden James / Chelsea Cutler / Current Joys / Banda MS de Sergio Lizárraga / Snoh Aalegra / Finneas / Pink Sweat$ / Omar Apollo / Ali Gatie / Baby Keem / Ari Lennox / Tchami / Spiritualized / beabadoobee / Madlib / Beach Bunny / TOKiMONSTA / Giveon / The Marías / Japanese Breakfast / Black Coffee / Lost Kings / Lane 8 / Surf Curse / Crumb / IDLES / Eyedress / Slowthai / Slander / Floating Points / DJ Koze / Amber Mark / NIKI / Princess Nokia / Solomun / Purple Disco Machine / Maxo Kream / L'Impératrice / Kim Petras / Grupo Firme / Role Model / Arlo Parks / Raveena / Koffee / 100 gecs / Rina Sawayama / Peggy Gou / Skegss / PUP / Chicano Batman / Inner Wave / Nilüfer Yanya / Pabllo Vittar / Natanael Cano / Molchat Doma / Epik High / Turnstile / The Regrettes / Sampa The Great / Dom Dolla / Channel Tres / Fred again.. / The Chats / Lawrence / Daphni / Ed Maverick / Orville Peck / Nathy Peluso / Richie Hawtin / Emotional Oranges / Black Midi / Viagra Boys / The Hu / Amyl and the Sniffers / Nicki Nicole / Meute / Holly Humberstone / Code Orange / Kyary Pamyu Pamyu / Beach Goons / Dixon / Altın Gün / The Martinez Brothers / Luttrell / Satori / Mannequin Pussy / Anna / ARTBAT / The Blessed Madonna / Honey Dijon / Yola / Damian Lazarus / Adam Port / GG Magree / Chris Liebing / Bedouin / Yard act / John Summit / Mariah the Scientist / Michael Bibi / Alaina Castillo / Jayda G / Whipped Cream / Jean Dawson / AROOJ AFTAB / Cariño / GRISELDA / Ela Minus / Paco Osuna / Logic1000 / VnssA / ANNA (BR) / DJ Lord / Sama' Abdulhadi / MIANE / Sohmi / AMEME / Dear Humans / SNOH AAELGRA / DJ Holographic / YE / Giselle Woo and The Night Owls / Emo Nite / Giselle Woo / LAYLA BENITEZ / FEATURING 88RISING'S HEAD IN THE CLOUDS FOREVER / Hoodrich Savo / DAPHNI (IS CARIBOU) / CARIBOU (IS DAPHNI) / MADLIB BILLED W/FREDDIE GIBBS / FREDDIE GIBBS BILLED W/MADLIB / BANDA SINALEONSE MS DE SERGIO LIZARRAGA / COLE KNIGHT / KIM PRETRAS / Honey Dijon b2b The Blessed Madonna / Honey Dijon b2b The Blessed Madonna / Shania Twain / Jhene Aiko / YG / Justin Bieber / Loren Gray / Royal & the Serpent / Gorillaz / Khalid / Tove Lo / Beck / Vince Staples / Caroline Polachek / MAY-A / Kai / Jeremy Zucker / Quinn XCII / Tyga / Becky G / Tiësto / 2NE1 / CL / Jackson Wang / Utada Hikaru / BIBI / Yoon Mirae / Millie / Rich Brian.