Barenaked Ladies (BNL) is a Canadian rock band formed in 1988 in the Toronto suburb of Scarborough, Ontario. The band developed a following in Canada in the early 1990s with their cassette Barenaked Ladies (1991) and their debut album Gordon (1992). The band's popularity eventually spread to the United States following the release of versions of "Brian Wilson" and "The Old Apartment" from their 1996 live album, Rock Spectacle. In 1998, Barenaked Ladies released their fourth studio album, Stunt, which contains their highest-charting hit, "One Week", along with "It's All Been Done" and "Call and Answer". Their fifth album, Maroon, also charted well. The band is also known for creating and performing the theme song of the American sitcom The Big Bang Theory. Barenaked Ladies has continued to regularly tour and record new music, having released 14 primary studio albums of original material and three themed studio albums.