The album's first single, "Don't Phunk with My Heart", was a hit in the United States, reaching number three on the U. Hot 100 and earned them another Grammy for Best Rap Performance by a Duo or Group. 14, although becoming somewhat more successful in the UK and Australia, reaching a peak of No.6 in both countries.
Tour alongside Cyndi Lauper, which took them to 52 cities across the United States and Canada.
The third single from the album, "Hey Mama", reached the top 10 in several European countries and later peaked at number twenty-three in the United States. Their next album, Monkey Business, was released on June 7, 2005 and debuted at number two on the U. Billboard 200 albums chart, selling over 295,000 copies in its first week and was later certified triple platinum by the RIAA.
Their next and last commercially released single from the album was "Pump It", which borrows much of its sound from "Misirlou", specifically Dick Dale's version; it peaked at number 8 in Australia but 18 in America.
Ferguson returned to acting in 2006, appearing as a lounge singer in the Poseidon remake.
She later had supporting roles in 2007's Grindhouse and the 2009 musical film Nine.