- HH
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- Hardin, Eddie
- Hardin, Gus (country)
- Hardin, Lane
- Hardin, Melora (US actress)
- Hardin, Thomas Trio
- Hardin, Tim
- Harding University Concert Choir
- Harding, Aldous (New Zealand folk musician)
- Harding, Carolyn
- Harding, Curtis (soul singer from Atlanta)
- Harding, John Wesley
- Harding, John Wesley & Minus 5, The
- Harding, John Wesley feat. Springsteen, Bruce
- Harding, Karen (British singer and songwriter)
- Harding, Karen & Digital Farm Animals
- Harding, Karen & Wh0
- Harding, Lee
- Harding, PJ
- Harding, PJ & Cyrus, Noah
- Harding, Sarah
- Hardinger, Michael
- Hardingrock
- Hardjodikoro, Indro
- Hardkandy
- Hardkiss, Scott
- Hardknock
- Hardknox
- Hardline (US melodic hard rock band)
- Hardneja Sertacore
- Hardnox (UK trance trio)
- HARDNSTRANGE (Belgian DJ & producer)
- Hardo (rapper)
- Hardo feat. Miller, Mac & Njomza
- Hardo feat. Wiz Khalifa
- Hardouin, Camille
- Hardpan
- Hardpot
- Hardrive
- Hardrock (US rapper)
- Hardrock Striker
- Hardrox
- Hardsequencer
- Hardsheep Kaur
- Hardsoul (rap group from Bielefeld, Germany)
- Hardsoul (Dutch house/electro producer duo; Brothers DJ Roog & Greg)
- Hardsoul & Carroll, Ron
- Hardsoul feat. Carroll, Ron
- Hardsoul feat. Rea Carroll
- Hardstyle Masterz (hardstyle DJ, real name Antonio Donà)
- Hardstyle Masterz & Enforcer, Max
- Hardway, James
- Hardway, Jay
- Hardwell (Robbert van de Corput, house DJ & producer from Breda, NL)
- Hardwell & Blasterjaxx
- Hardwell & Bright Lights
- Hardwell & Crown, Mitch
- Hardwell & Dale, Joey feat. Luciana
- Hardwell & DallasK
- Hardwell & Dannic feat. Haris
- Hardwell & Dannic feat. Kelli‐Leigh
- Hardwell & Derulo, Jason
- Hardwell & Dyro feat. Bright Lights
- Hardwell & Fong, Henry feat. Mr. Vegas
- Hardwell & Funkerman feat. I-Fan
- Hardwell & Grant, Lee
- Hardwell & Harrison
- Hardwell & Headhunterz feat. Haris
- Hardwell & JGUAR
- Hardwell & Kaaze feat. Allred, Loren
- Hardwell & KSHMR
- Hardwell & Kura
- Hardwell & Maddix
- Hardwell & Mahone, Austin
- Hardwell & MAKJ
- Hardwell & Moksi
- Hardwell & Mr. Probz
- Hardwell & Outsiders
- Hardwell & Phunk, Dr.
- Hardwell & Phunk, Dr. feat. Jantine
- Hardwell & Quintino
- Hardwell & Reese, Jake
- Hardwell & Showtek
- Hardwell & Sick Individuals
- Hardwell & Suyano
- Hardwell & Suyano feat. Richie Loop
- Hardwell & Tiësto feat. Moe, Andreas
- Hardwell & W&W
- Hardwell & W&W feat. Fatman Scoop
- Hardwell feat. Bright Lights
- Hardwell feat. Crown, Mitch
