- tT
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- TTab
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- TaiTak
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- ThThi
- ThiThi
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- TvoTwi
- TwiTwi
- TwiTwo
- Twotwo
- TwotyD
- tyDTyl
- TylTyp
- TypTzu
- Their Eyes Were Flowers (New Zealand dark ambient)
- Theishter (Musician, youtuber)
- TheJonyMyster
- Thelin, Eje
- THELIXX
- Thelma (Alternative folk band from Brooklyn, NY, featuring Natasha Jacobs)
- Thelonious Monster
- Thelonius Monk Quartet
- Them (Northern Irish group originally feat. Van Morrison)
- Them (German Metal)
- THEM (Seattle-based pop rock band)
- Them Are Us Too
- Them Bird Things
- Them Coulee Boys
- Them Crooked Vultures
- Them Evils
- Them Fantasies
- Them feat. Morrison, Van
- Them Mushrooms
- Them Swoops
- Them Terribles
- Them Two
- Them Vibes
- Theme Park
- theMIND (Chicago hip-hop artist Zarif Wilder)
- Themselves
- Then Comes Silence (goth/post-punk)
- Then Jerico
- Then Thickens
- thenewno2
- Theo (Germany, classic rock)
- Theo & Marjan
- Theo Junior (German R&B artist/rapper)
- Theo Schumann Combo
- Theo, Allan
- Theobroma
- Theocracy
- Theodis Ealey (Theodis Ealey IFGAM Record Company)
- Theodor Bastard
- Theodora (french singer)
- Theodorakis, Mikis
- Theodorakis, Mikis (Greek composer and lyricist)
- Theodorakis, Mikis & Farantouri, Maria
- Theodorakis, Mikis & Livaneli, Zülfü
- Theodore (From St. Louis, USA)
- Théodore (belgian rapper)
- Theodore Kidd
- Theodore Unit
- Théodore, Paul & Gabriel (all-women pop-folk band)
- Theodore, Ruth
- Theodoridou, Natasa (Natassa Theodoridou)
- THEODORT (French YouTuber)
- TheOneUps
- Theophany (video game arrangement)
- Theoretical Girl (Amy Turnnidge performance name)
- Theories
- Theorist, The
- Theory (Danish Power Metal Band)
- Theory in Practice (Swedish Technical Death Metal)
- Theory of a Deadman
- Theory of a Deadman feat. Cooper, Alice
- Theory of a Deadman feat. Rooney, Joe Don
- Theory, Nameless
- Theory, Trigger (New Zealand rock quartet)
- THEOS (London based French electronic music producer)
- Theotoxin (black/death metal band)
- TheOvertunes
- Theoz
- THePETEBOX (The Petebox, Petebox)
- ThePlasmas
- Thera (artist from Anchorage)
- Thera, DJ (hardstyle DJ and producer)
- Theraphosa
- Therapie TAXI (French rock group)
- Therapie TAXI feat. Elvis, Roméo
- Therapy? (Irish alternative metal band)
- there (Israelli dream-pop duo)
- There Are No More Four Seasons
- There for Tomorrow
- There There Theres
- There Will Be Fireworks
- There's a Light (Post-rock band from Lahr/Schwarzwald, Germany)
- There's Talk
- There’s a Tuesday (New Zealand dream-pop band)
- TheRealbdr
- Therefore I Am
- Therein (Australian progressive metal band)
- Therese (Swedish euro house artist Eva Therese Grankvist)
- Thergothon
- Theriault, Nicole
