R&B Beat: Chaka Khan, Boyz II Men, Smokey Robinson ...

R&B singer, harmony group, icon performing at radio station's 50th birthday party; R&B crooner, rapper remixing song.

Chaka Khan, Boyz II Men, Smokey Robinson and Eric Benét will perform at the 50th anniversary celebration of KPRS-FM (Hot 103), the oldest African–American-owned-and-operated radio station in the United States. The party will be held July 22 at Bartle Hall/Kansas City Convention Center, in Kansas City, Mo., according to a station spokesperson. ...

R&B crooner D'Angelo and rapper Dr. Dre are teaming for a remix of the former's "Chicken Grease," according to MTV News Online. D'Angelo said he's also working on a remix of his "Devil's Pie," which should be released soon. ...

The speculation about Whitney Houston's health intensified this week with a US Weekly magazine report alleging that the singer's friends and family called a drug counselor to carry out an intervention to persuade Houston to enter a treatment facility. The singer refused, the article's author claimed. Representatives for Houston could not be reached for comment. ...

Grammy-nominated gospel singer the Rev. James Moore died Wednesday (June 7) in Memphis, Tenn., at age 44. His most recent album, Family and Friends, was released in April. ...

R&B-pop singer Monica has a supporting role in the new Freddie Prinze Jr., movie "Boys and Girls," to be released Friday (June 16). The singer also is set to appear in an MTV movie alongside Justin Timberlake of *NSync. (Sonicnet.com's parent company, Viacom, also owns MTV.) ...

A Supremes four-disc box set is scheduled for release Aug. 26 on Universal Records. Frontwoman Diana Ross launches a tour with Lynda Laurence and Scherrie Payne, two singers who performed in a latter-day, post-Ross version of the girl-group, on Wednesday (June 14) in Philadelphia. ...

R&B singer Brian McKnight will perform Thursday (June 15) at the 31st annual Songwriter's Hall of Fame induction ceremony in New York. He will take part in a tribute to soul singer/songwriter Curtis Mayfield, who died last year. Other artists scheduled to perform at the event are Aaron Neville, Hanson and Carole King. ...

Prince has posted 18 song clips in RealAudio format in The Vault section of his Web site (www.npgonlineltd.com). Clips include a four-minute live clip of "I Could Never Take the Place of Your Man," as well as snippets of the studio recordings "Cybersingle" and "Splash." ...

The four-CD Doo Wop Box III, featuring tracks by the Dominoes, Drifters and Spaniels, will be released Aug. 1. The tracks on the set were chosen by artists who grew up listening to doo-wop, including Robert Plant and Keith Richards. ...

Soul singer Tyrese will perform at the first Watts Day festival in Los Angeles on July 2. The family festival will feature amusement rides and games in addition to musical performances. ...

Tuesday's birthdays (June 13): Bobby Freeman, 60; Marvin Tarplin (Smokey Robinson and the Miracles), 59; James Carr, 58; and Deniece Pearson (Five Star), 32.

— sonicnet.com staff report