 One week before the official release of Teenage Dream, the solo version of "E.T." was released as a promotional single and debuted on the US Billboard Hot 100 chart at number 42, selling 64,000 digital copies. Following its single release featuring West, the song re-entered the Billboard Hot 100 on March 5, 2011 at number 28 with 110,000 copies being sold. In its fifth week, for the issue dated April 9, 2011, "E.T." topped the chart, giving Perry her fifth and West his fourth number-one single on the Hot 100. It ended the six-week run of Lady Gaga's "Born This Way" and made Teenage Dream the ninth album in history to yield four number-one singles. "E.T." spent five non-consecutive weeks at number-one on the Hot 100 chart and was certified eight times Platinum by the Recording Industry Association of America (RIAA). It topped the Billboard Hot Digital Songs chart for seven weeks, the longest since Eminem and Rihanna's "Love the Way You Lie" in 2010. "E.T." is one of the best-selling singles worldwide, and is the second-highest-selling single of Perry's career. According to Billboard, it was the fourth-biggest hit of 2011.
