When I Grow Up (Pussycat Dolls Song) - Commercial Performance

Commercial Performance

In the United States, the song debuted on the Billboard Hot 100 at number 76 on the issue dated June 14, 2008. On its second week, the song sold 34,000 digital downloads and ascended to number 31. In its fourth week, it reached its peak position of number nine, becoming Pussycat Dolls' highest charting single since "Buttons", which peaked at number three in 2006. The song topped the Hot Dance Club Play chart, the issue dated August 2, 2008. The song has sold over 2.18 million digital downloads in the United States to date, according to Nielsen Soundscan, making the Pussycat Dolls the first all-female group in digital history to have three singles—along with "Don't Cha" and "Buttons"—pass the two million mark in digital sales. In Canada, the song debuted at number fifteen on the Canadian Hot 100. On the chart dated September 6, 2008, "When I Grow Up" ascended and peaked at number three.

In Australia, the song debuted at number 45, on June 22, 2008. In its sixth week, the song peaked at number two and stayed there for three consecutive weeks. "When I Grow Up" was certified platinum by the Australian Recording Industry Association (ARIA) for shipments of 70,000 copies. In New Zealand, the song debuted on the chart at number 33. It reached number five a few weeks later. and was certified gold by the Recording Industry Association of New Zealand (RIANZ) for selling over 7,500 copies. In the United Kingdom "When I Grow Up" debuted and peaked at number three on the UK Singles Chart with sales of 29,688. It also spent three weeks at the top of the UK R&B Chart. On the Billboard European Hot 100 Singles the song debuted at number three, and also peaked at number nine in Germany.