Hip-Hop Beat: 504 Boyz, Lil' Kim, Ex-Centric Sound System ...

An X-rated version of 'Wobble, Wobble,' by Master P's supergroup featured on WestSideTV.com.

Rap group 504 Boyz are featured on WestSideTV.com with an X-rated version of the video for their chart-topping single, "Wobble, Wobble." The site also includes uncut videos from hip-hop artists Ice Cube, Dr. Dre, Snoop Dogg, Eminem, Mos Def and Q-Tip, according to a spokesperson from the site, who asked not to be named. ...

The rapper who helped make platinum wigs, skimpy designer threads and X-rated rhymes de rigueur for female MCs will begin a series of appearances to push her new album, Notorious K.I.M. Lil' Kim will be at the HMV outlet June 28 in Harlem, N.Y., for an in-store appearance and will perform her single "No Matter What They Say" before July 6 on "Live! Regis & Kathie Lee," according to an Atlantic spokesperson. ...

Israel's Ex-Centric Sound System, who mix electronic music with Ghanaian chanting, will open for Chicago rapper Common on Saturday (June 24) in New York's Central Park, as part of the Summerstage Concert Series. ... Hip-Hop artists the Coup, Black Anger, Underground Railroad and 10 others will be featured on a free MP3-only compilation put together by Punk Planet. Available online Monday (June 26) at www.punkplanet.com, the release is set to correspond with the street date of Punk Planet's issue #38 and its publication of Aaron Shuman's essay on the New Hip-Hop Activism movement. ...

The video for Lil' Kim's "No Matter What They Say" — debuting on MTV's "Total Request Live" on Tuesday (June 20) — includes celebrity cameos by Carmen Elektra, Method Man, Redman, Missy Elliott, Mary J. Blige, Sean "Puffy" Combs and Junior M.A.F.I.A., according to an Atlantic spokesperson. The song is off her upcoming album, Notorious K.I.M. (Sonicnet.com's parent company, Viacom, also owns MTV.) ...

Rapper Busta Rhymes is promoting the release of his fourth solo album — Anarchy, due Tuesday (June 20) — with a week of public appearances, according to Markeisha Ensley, a publicist at Elektra. He performed the single "Get Out" on the CBS-TV's "Late Show With David Letterman" on Monday (June 19) and appeared at two record stores Tuesday in New York and New Jersey, and he will host an album release party Wednesday at The Exit in New York and appear for an interview on Thursday's "Late Night With Conan O'Brien" on NBC-TV. ...

Nate Dogg, the vocalist who brought g-funk harmonies to West Coast gangsta rap, was arrested on Saturday by the Los Angeles County Sheriff's Department for allegedly kidnapping, abusing and making terrorist threats against his 26-year-old girlfriend, as well as burning her car. The 30-year-old, who has been performing with his cousin Snoop Dogg and collaborator Warren G on the ongoing Up in Smoke rap tour, was released after posting $1 million bail, said department spokesperson Rick Martinez. A tour spokesperson could not be reached for comment. ...

Rap star Eminem will be featured in 26 weekly animated cartoons to be shown on a new Web site, Slimshadyworld.com, according to Isis Payan, a spokesperson for parent site Hookt.com. The rapper will provide the voices for the episodes, which will begin in mid-July. ...

Big Tymers, Sticky Fingaz, Nelly, Chico DeBarge and Monifah will contribute songs to the soundtrack for "The Original Kings of Comedy," a Spike Lee movie due this summer. The soundtrack also will include comedy bits from Steve Harvey, D.L. Hughley, Cedric the Entertainer and Bernie Mac, according to Valencia Terrell, a publicist at Universal Records. ...

New York hip-hop label 75 Ark, whose lineup includes Automator and Anti Pop Consortium, entered an agreement with MP3-trading software company Napster, the two companies announced Thursday (June 15). The agreement, Napster's first with a record label, includes plans for exclusive monthly downloads of unreleased songs. ...

Thursday's birthday (June 22): Afrika Baby Bambaataa (Jungle Brothers), 30.

— sonicnet.com and MTV News Online staff report