Pop singer Delta Goodrem has notched up her eighth chart-topping single in her native Australia.

Her latest track, "In This Life" (Sony BMG Music), this week debuts at No. 1 on the Motorola Australian Recording industry Association Top 100 singles chart. At the same time, it opens at No. 3 on the national digital chart.

The song has already certified gold on first-week sales of 35,000 units, Sony BMG says. It is also the second most-played track on radio, according to the Music Network airplay chart.

Only two female artists have a more-impressive Australian chart run: Madonna and Kylie Minogue. Madonna has notched up ten No. 1s over 21 years, and Minogue had nine over 16 years. Goodrem reached her tally over a five-year career.

"In This Life" is the lead-off track from Goodrem's third album "Delta", due Oct. 30.

Goodrem's first two albums "Innocent Eyes" (2003) and "Mistaken Identity" (2004) sold a combined 3.5 million units worldwide, according to Sony BMG Music Entertainment Australia.

The artist took time out from the music industry when, as an 18-year-old, she was diagnosed in 2003 with Hodgkin's disease, a treatable form of lymphatic cancer.