Which song gave The Black Eyed Peas their first Billboard Hot 100 No. 1 in 2009?

The Black Eyed Peas’ “Boom Boom Pow” gave the group its first Billboard Hot 100 No. 1 in 2009.

Released in March 2009, the electro-pop track was the lead single from the group’s fifth studio album, The E.N.D. Its futuristic production, heavily processed vocals, and rhythmic chant helped define the group’s transition toward electronic dance-pop.

“Boom Boom Pow” reached No. 1 in April 2009 and stayed there for 12 weeks. It was followed immediately by “I Gotta Feeling,” which began a combined 26-week run at the top for the group’s two singles.

The two songs are frequently linked because they dominated the chart in succession. However, “Boom Boom Pow” was the first of them to reach No. 1 and was the group’s first overall leader on the Hot 100.