On The 6 was released in 1999 and featured the massive first single, If You Had My Love. It also contained the Spanish language, Latin-flavored duet No me ames with Marc Anthony, which was an international hit and was not released as a single in the United States, although the video got moderate airplay on American VH1 and The Box as a novelty.

Duff's first recorded singing performance was on the song I Can't Wait, which appeared on the Lizzie McGuire Original Television Soundtrack in 2002. She would also sing on several tracks on the soundtrack to The Lizzie McGuire Movie in 2003. One of these tracks, Why Not, was released as a single, reaching the top 20 in Australia, New Zealand and the Netherlands.


3rdflute5
3rdflute6
3rdflute7
3rdflute8
3rdflute9
3rdflute10
3rdflute11
3rdflute12
3rdflute13
3rdflute14
3rdflute15
3rdflute16
3rdflute17
3rdflute18
3rdfrenchhorn1
3rdfrenchhorn2
3rdfrenchhorn3
3rdfrenchhorn4
3rdfrenchhorn5
3rdfrenchhorn6