Complex sentence: In 2004 she was a featured artist on the UK No 1 dance chart hit "Now We Are Free", a dance remix of the "Gladiator" film theme song that also reached No 19 on the main UK Singles Chart.
Split into simpler sentences: In 2004 she was a featured artist on "Now We Are Free", 2004. The disc was a UK No 1 dance chart hit and also reached No 19 on the main UK Singles Chart.