In the United States, "Don't Phunk with My Heart" entered the
Billboard Hot 100 at number 97 following its release. The song then jumped sixty-six places to number 31 in the following week due to digital sales. It continued to rise up the chart until June 25, 2005, when it peaked at number three due to an increase in digital sales, becoming the week's "greatest digital gainer". "Don't Phunk with My Heart" also reached the top 10 on the
Billboard Mainstream Top 40. In the United Kingdom, "Don't Phunk with My Heart" entered and debuted at number three on the
UK Singles Chart on May 22, 2005 (for the week ending May 28, 2005). On May 23, 2005, "Don't Phunk with My Heart" debuted and peaked at number one on the
Australian Singles Chart. It lost the position the following week but retook the position on June 12 and maintained the top spot for two more weeks. The song has shipped over 70,000 copies in Australia, earning a platinum certification by the
Australian Recording Industry Association (ARIA). In New Zealand, the song entered the singles chart at number 36 on May 16, 2005. The following week, it rose to number one, where it stayed for three consecutive weeks. The song shipped 15,000 copies in New Zealand, earning a platinum certification by the
Recording Industry Association of New Zealand (RIANZ). "Don't Phunk with My Heart" appeared on the
Norwegian Singles Chart on May 24, 2005, at number five. It maintained that position for three weeks before rising to number four on June 14, 2005, where it continued to stay for three more weeks. The song remained on the chart for six more weeks and shipped over 5,000 copies, earning a gold certification by
IFPI Norway. Across the rest of Europe, "Don't Phunk with My Heart" achieved top-five positions in Austria, Denmark, Finland,
Flanders, Italy, the Netherlands, Spain, and Switzerland and reached the top 10 in France, Germany, Sweden, and
Wallonia. ==Music video==