Black Eyed Peas' first major hit was the 2003 single "Where Is the Love?" from "Elephunk", which topped the charts in 13 countries, including the United Kingdom, where it spent seven weeks at number one and went on to become Britain's biggest-selling single of 2003. Their fourth album, "Monkey Business", was an even bigger worldwide success, and became certified 4× Platinum in the United States. In 2009, the group became one of only 11 artists to have simultaneously held the number-one and number-two spots on the "Billboard" Hot 100, with their singles "Boom Boom Pow" and "I Gotta Feeling", which topped the chart for an unprecedented 26 consecutive weeks.