"Boom Boom Pow" is a single by the Black Eyed Peas released as the lead single from their fifth studio album, The E.N.D. The song uses the auto-tune vocal effect, and blends the genres of dance pop, electro-hop and hip hop.
"Boom Boom Pow" topped the Billboard Hot 100, making it the group's first U.S. number-one single. It is the longest-running single to stay atop the Hot 100 in 2009, where it kept the position for twelve consecutive weeks. This also makes it the longest-running number-one single on the Billboard Hot 100 since 2005's "We Belong Together" by Mariah Carey. It has also topped the Australian, Canadian and UK singles charts as well as reaching the top 10 in more than 20 countries.
The song sold over 3,617,000 digital downloads in the U.S, making it the group's highest-selling song in the U.S. to date. The group's only other song to reach the 2 million sales mark in the U.S., "My Humps", took nearly two years to achieve that.