- 451 (US rapper)
- 454 (stoner band from Uppsala, Sweden)
- 454 (Orlando rapper)
- 45ACIDBABIES
- 45RPM (Korean hip hop group)
- 46bliss
- 47, Dino MC
- 47SOUL
- 47ter (French rap)
- 47ter feat. Fouine, La
- 47ter feat. Tayc
- 48 Cameras (Belgian-based international music collective)
- 48May
- 49 Days
- 49 Winchester (Appalachian soul music)
- 49ers (Italian house and Eurodance)
- 49ers, The (Delaware hip-hop duo)
- 49th & Main
- 49th Parallel (1960s Canadian pop band)
- 4Arm
- 4B (DJ)
- 4brvhvm
- 4Count
- 4Dreamers (Polish group)
- 4EVE (Thai girl group)
- 4EverfreeBrony
- 4EverfreeBrony feat. Chi‐Chi
- 4EverfreeBrony feat. Cookie Dough
- 4Eyez (UK Rapper)
- 4F Club
- 4FT Fingers
- 4Fun (Lithuania)
- 4hands
- 4hero
- 4hero feat. Andersson, Carina
- 4hero feat. Scott, Jill
- 4Him
- 4Keus (french rap)
- 4keus Gang (French Rap)
- 4L
- 4L Javi
- 4lienetic
- 4lung
- 4lung feat. minxmax
- 4LYN
- 4Mag Nitrous (Southern Rock, Stoner Metal, US)
- 4MEN
- 4minute
- 4minute feat. BEAST
- 4na
- 4onthefloor, The (blues/rock band from Minneapolis, MN)
- 4R
- 4Rain, DJ
- 4ria
- 4Shades
- 4Taste
- 4TEN (South Korean girl group)
- 4TET
- 4th 'N Goal
- 4th & Orange
- 4th Ave
- 4th Avenue Jones
- 4th Dimension (Nick Dickens)
- 4th Dimension (Italian symphonic power metal band)
- 4th Dimension (folk)
- 4th Disciple & Hell Razah
- 4th Impact (Filipino girl group)
- 4th Point
- 4Troops
- 4tune (German rapper Mario Müller)
- 4tuoze Matroze
- 4U
- 4Werke
- 4x4 (Ferry Corsten)
- 4yüz
- 4zugara
- 5 a Seco
- 5 After Midnight
- 5 Alarm Music (Production Music Library)
- 5 Billion in Diamonds
- 5 Cent Coffee
- 5 Chinese Brothers
- 5 Days Ahead (Philadelphia rock band)
- 5 in Love
- 5 Jones Boys, The
- 5 Majeur
- 5 NY
- 5 O'Clock Charlie (band from Milwaukee)
- 5 Royales, The
- 5 Seconds of Summer
