Plain White T's

Plain White T's is an American pop rock band started in 1997, originally from Villa Park, Illinois. Formed by high school friends Tom Higgenson and Ken Fletcher, the group had a mostly underground following in Chicago basements, clubs, and bars in its early years, and underwent numerous personnel changes. The band is best known for the songs "Hey There Delilah", which charted highly in many countries, and "1, 2, 3, 4". In 2008, they received a Grammy nomination for "Hey There Delilah". The band broke into the mainstream following the success of "Hey There Delilah" and the well-received "Hate (I Really Don't Like You)" from the album Every Second Counts. The group's latest album is Big Bad World, released in 2008.

-wikipedia.org