There are major differences between BarbieReference.com
Fashion Avenue line names and years and other websites read about them here.
1996
There are no line names on packages this year. My 1996 Mattel USA Vendor Catalog calls these fashions Ken fashions. There is also a formal tuxedo for Ken in the Evening Wear line this year.
1997
Ken has his own line this year, and a tuxedo in the Evening Wear line.
1998
Ken has his own line this year, a tuxedo in the Evening Wear line, and three outfits with a matching outfit for Tommy in the Matchin’ Styles line.
1999
Ken has his own line this year and two outfits with a matching outfit for Tommy in the Matchin’ Styles line.
2000
Ken continues to have his own Fashion Avenue line from 2000 on, but no longer has outfits in the Evening Wear/Dazzle lines nor the Matchin’ Styles line.
2001