Power-packed Powerhouse ’09 concert

Jay-Z headlined an eclectic bill at the flagship concert event for popular hip-hop station Power 106.  (Ken Hively / Los Angeles Times)

Fergie and apl.de.ap of the Black Eyed Peas made a guest appearance at the event.  (Ken Hively / Los Angeles Times)

Fergie at the annual hip-hop concert. Two of L.A.’s most significant hip-hop festivals went head to head on Saturday as Powerhouse was held on the same day as Rock the Bells.  (Ken Hively / Los Angeles Times)

Fergie, looking tousled for the Black Eyed Peas’ performance.  (Ken Hively / Los Angeles Times)

Play misty for her: Fergie of the Black Eyed Peas.  (Ken Hively / Los Angeles Times)

San Francisco rapper Ya Boy was among those on Saturday’s lineup, a bill that was bolstered by young hands behind many of the year’s most inescapable and electro-driven singles.  (Ken Hively / Los Angeles Times)

Crunk pioneer Lil Jon.  (Ken Hively / Los Angeles Times)

Miami’s Pitbull brings a Latin American influence to Powerhouse.  (Ken Hively / Los Angeles Times)

Kid Cudi at the Powerhouse concert.  (Ken Hively / Los Angeles Times)

Flo Rida was among artists with top billing at the pop-centric hip-hop event.  (Ken Hively / Los Angeles Times)

Rapper Sean Paul.  (Ken Hively / Los Angeles Times)

Sean Paul performs at the Powerhouse concert.  (Ken Hively / Los Angeles Times)

Sky Blu of LMFAO, triumphant at Powerhouse.  (Ken Hively / Los Angeles Times)

Red Foo of LMFAO.  (Ken Hively / Los Angeles Times)

Jay-Z performs at Saturday’s concert, an event that provided evidence that L.A. is a destination for top-flight live hip-hop in America, writes The Times’ August Brown.  (Ken Hively / Los Angeles Times)