"T-shirt and tight blue jeans" is a song released in 1983 by Divine. Actually, he was an underground film star-singer and, his stage performances would often be described by himself as "just good, dirty fun, and if you find it offensive, honey, don't join in".
A part from this, Divine made a legendary partnership with the American music producer Bobby Orlando, which lead to several musical hits, including the following 83's hit song.