But now, many labels have introduced - or are about to - a third line, and in one case even a fourth price level.
The labels themselves are introducing services with a bizarre assortment of restrictions.
These full size steel silhouettes and their labels introduce you to famous and not-so-famous people who walked here before you.
She scored what would be her biggest hit in 1998 when her label introduced the tankini.
At the time of its spreading popularity, end 1980s and mainly early 1990s, the label introduced a genuine innovation in music history.
Her biggest hit, the tankini, came in 1998 when her label introduced the innovation.
Late in 2001 the major labels introduced their alternatives.
To further increase the market possibilities, the Warner's label will introduce styles in five different shades at the end of this month.
Meanwhile the label introduced the monokini and thong from Brazil, causing controversy with the topless photos used to advertise them.
Shortly afterward, the label introduced him to musician Steve Vai.