R. Kelly, Jay-Z Summon 'Best Of Both Worlds'

With the success of collaborative efforts on the songs "Guilty Until Proven Innocent" and the "Fiesta" remix under their belts, it made perfect sense for R. Kelly and Jay-Z to team again. This time ou

With the success of collaborative efforts on the songs "Guilty Until Proven Innocent" and the "Fiesta" remix under their belts, it made perfect sense for R. Kelly and Jay-Z to team again. This time out though, the duo has teamed for a full album -- "The Best of Both Worlds," due March 26 via Def Jam. The set marks what is thought to be the first time that top-selling artists from the world of R&B and hip-hop have collaborated on a full-length release.

"We did those two tracks together, and we had always tossed around the idea of doing a whole album," Jay-Z said today (Jan. 24) in announcing the album in New York. "We're both creative people, and creative people create so we got together and made it happen."

"It's like mad scientists in a basement," Kelly added. "We wanted to get together and mix our potions."

"The Best Of Both Worlds" features production from the Trackmasters and Kelly, and guest appearances from Lil' Kim and Beanie Sigel, among others. A video for "Honey," the set's first single, will be shot late next week.

In addition to the album, R. Kelly and Jay-Z are planning a Best Of Both Worlds tour. While a full itinerary has not been finalized, fans can catch the pair headlining this year's LifeBeat Urban Aid benefit, which will also feature Sean "P. Diddy" Combs. Slated for April 9, the event will be held at New York's Beacon Theatre and broadcast live on BET.

Both acts are enjoying success on the charts at present. Jay-Z's "Unplugged" set is No. 41 on The Billboard 200 this week, while Kelly's single "The World's Greatest," from Interscope's "Ali" soundtrack, is No. 45 on The Billboard Hot 100.