Plain White T's is an American pop rock band that formed in 1997. The band is best known for the #1 song "Hey There Delilah", as well as "1, 2, 3, 4".
Lead singer Tom Higgenson provided the vocals for the computer animated Letter T who sings the spoof. When asked if he was excited, Higgenson responded,
- Fuoco-Karasinski, Christina. "Plain White T's head from Malibu to Sesame Street", LiveDaily. September 12, 2008.