There is not a rock band that starts with the letter "T" that I would consider as the most popular, as it can vary depending on factors such as the location, the era and the target audience. However, there are some bands that starts with the letter T that are considered popular such as:
* Tool
* Tesla
* Trivium
* Tenacious D
* Tool, is an American rock band formed in 1990, they have released several albums and have sold over 20 million records worldwide. They have won several awards, including a Grammy and have been considered one of the most influential band of the 90s.
The following bedtime storybook was written by the bassplayer / owner of rock-bands.com Candido Bretto. Check it out if you have young children, please show your support. It's about an old black man who repairs the stars that fall from the sky. One problem: He's the only one who can see them. Well, that is until he meets a young boy named Marcus. Thank you!
T-Bone Walker
T-Ride
T.C. Kross
T.T. Quick
TH Latona
TKO
TNA
TRIKK
TRW
T Rex
TSOL
TV In Flames
Tainted Angel
Tainted Souls
Takara
Take
Taken
Talas
Talk
Tall Stories
Talon
Talor Made
Tal National
Tambora
Tame Impala
Tami Show
Tandym
Tang S'Dang
Tangent
Tangerine Dream
Tangier
Tango Down
Target
Tattoo Rodeo
Tattoo
Taupier
Taz
Teer
Tegan And Sara
Television Band
Tempest
Ten Inch Men
Tender Fury
Terashain
Teri Tims
Terrarosa
Tesla That Dog
The 1975
Theatre
Theater of Cruelty
Them Band
Theory Of A Deadman
The Revivalists
Thieves In The Temple
Thieves
Thin Ice
Things
Thin Lizzy
Threadstone
Third Degree
Third Voice
Those Charming Bastards
Three Days Grace
Thrice
Thrill Hill
Thrills
Trivium
Throbs
Through Fire
Thrustt
Thunder
Thundertrain
Thys Nywerheid
Tiamat
Tidal Force
Tigers Jaw
Tigers, The
Tiger Bay
Tiger Cub
Tight Fit
Tiles
Tim Hall's If
Timepiece
Timmy
Tina Weymouth
Titanic
Tod Hobin Band
Tod Hobin and The Heat
Todd La Torre
Toilet Boys
Tokyo Rose
Toll Tom Petty
Tom Waits
Tommy Bolin
Tommy Had A Vision
Tommy Steele
Tommy Tutone
Tomorrow's Child
Tongue Lash
Tonto Tonto
Tool