Jennifer Lopez and Britney Spears lead the field of music nominations for seventeen magazine's fourth annual Teen Choice Awards, set to air Aug. 19 on Fox.

Jennifer Lopez and Britney Spears lead the field of music nominations for seventeen magazine's fourth annual Teen Choice Awards, set to air Aug. 19 on Fox. Winners in categories encompassing TV, movies, music, and sports will be determined by readers' votes, either through ballots found in the July and August issues of seventeen, or by visiting the magazine's official Web site. Only voters age 13-19 may participate.

Lopez' and Spears' multiple nominations come in crossover fields, as they're both up for best female artist -- alongside Mary J. Blige, Janet Jackson, Alicia Keys, Alanis Morissette, Pink, and Shakira -- as well as best actress in a drama/action adventure (Lopez for "Enough;" Spears for "Crossroads). Both are also up for the female: hottie award.

Teen crooner Mandy Moore is also nominated for best actress in a drama/action adventure (for her role in "A Walk to Remember"), while on the men's side, Will Smith is up for best actor in a drama/action adventure (for "Men in Black 2"). Craig David, Enrique Iglesias, Ja Rule, Jay-Z, Ludacris, Moby, Nelly, and Usher each received nods for best male artist.

The best album nominees are Usher's "8701" (Arista), Linkin Park's "Hybrid Theory" (Warner Bros.), Pink's "M!ssundaztood" (Arista), Mary J. Blige's "No More Drama" (MCA), No Doubt's "Rock Steady" (Interscope), P.O.D.'s "Satellite" (Atlantic), Alicia Keys' "Songs in A Minor" (J), and Ludacris' "Word of Mouf" (Def Jam). Up for best single are Lopez and Ja Rule's "Ain't It Funny," Keys' "Fallin'," Pink's "Get the Party Started," 'N Sync featuring Nelly's "Girlfriend," No Doubt's "Hey Baby," Spears' "I'm a Slave 4 U," Shakira's "Whenever, Wherever," and Usher's "U Don't Have To Call."

Seventeen is also sponsoring a promotional contest to send one fan and a guest to the filming of the Teen Choice Awards in Los Angeles. Entry forms and more information are available at Seventeen's Web site.