Plain White T's (read as "plain white tees") is an American pop punk band from Chicago, Illinois. Formed in 1997 by high school friends Tom Higgenson, Dave Tirio, Ken Fletcher and Steve Mast. The group had a mostly underground following in Chicago basements, clubs, and bars in its early years.The band is best known for the number-one hit song "Hey There Delilah", which achieved platinum status in 2007 and earned two Grammy nominations, as well as "1, 2, 3, 4" and "Rhythm of Love", which were certified platinum in 2009 and 2011, respectively.Formation (1997–99)The Plain White T's formed in Lombard, IL in the fall of 1997. The group began as a trio, with Higgenson as singer and guitarist, Fletcher on bass and Tirio on drums. They played mostly local punk shows around Chicago's suburbs, eventually landing gigs at the famed Metro in Chicago's Wrigleyville neighborhood. As the band began to establish itself in the local scene, they recruited a fourth member, Steve Mast, who joined playing lead guitar and singing backup vocals.Higgenson suffered a car crash in 1999, breaking several vertebrae in the accident, while driving the band's van. He was in a back brace for three months and had to learn to walk again. Higgenson changed his song-writing process, choosing songs that were more meaningful to him, and the band began taking their music career more seriously.Come On Over, Stop, and Mast's and Fletcher's departure (2000–03)In 2000, the band recorded their first album titled Come On Over. In 2002, the band self-financed the recording of Stop, a full-length album that drew the attention of Fearless Records. While the band toured in support for the album, both Fletcher and Mast left the band and were replaced by Tim Lopez and Mike Retondo. Shortly after, Tirio decided to switch from drummer to rhythm guitarist, and the new drummer named De'Mar Hamiltion was added to the lineup.All That We Needed and Every Second Counts (2004–06)The 2005 release All That We Needed was the first studio effort from the reformed lineup.Hey There Delilah was first released on their third album All That We Needed in 2005. They recorded Every Second Counts that year, on which "Hey There Delilah" was added in order to allow it a chance on mainstream radio. "Delilah" would go on to reach #1 on the Billboard Hot 100 chart and hold the spot for two weeks. The song was written for track star Delilah DiCrescenzo, whom Higgenson had met in 2002. The song earned two Grammy nominations, and Every Second Counts was certified Gold. In early 2006, the band teamed with Motion City Soundtrack for a Winter/Spring tour."Big Bad World" (2007–09)In 2008, they released the album Big Bad World. The album had two hit singles: "1, 2, 3, 4" and "Natural Disaster". Both were on the AT40 at numbers 1 and 2 for three consecutive weeks. By late 2008, the band had joined the Rock Band Live tour with Panic! at the Disco, Dashboard Confessional and The Cab. Later that year, the band played at the Give It a Name festival in the UK. In 2007, they performed the single Our Time Now on an episode of the Nickelodeon television series, iCarly. Our Time Now was also the theme song on the ABC Family dramedy series Greek.Wonders of the Younger (2010–12)The band's single Rhythm of Love was the first to be released from their 2010 album The Wonders of the Younger. The song reached number five on the Hot AC chart, and was in the top ten in 2010 as well. In 2012, the band also covered The Ramones' "Pet Sematary" for the song soundtrack of the 2012 Tim Burton film Frankenweenie.American Nights (2013–present)The EP Should've Gone to Bed, released on April 9, 2013, features 4 songs: Should've Gone To Bed, The Giving Tree, Helium, and Haven't Told Her.