By Whitney PastorekNancy MillerMichelle Kung and Adam B. Vary
Updated July 30, 2004 at 04:00 AM EDT

ENGAGEMENTS What’s the sound of a thousand tween hearts breaking? Actor Chad Michael Murray, 22, announced on July 12 that he will wed his ”One Tree Hill” costar Sophia Bush, 22, in 2005. It will be the first marriage for both.

BIRTHS ”Access Hollywood” weekend anchor Tony Potts, 41, and his ”AH” field-producer wife Nancy Derderian, 39, welcomed daughter Bella Angel on July 12 in L.A. She is the couple’s first child. Potts has a daughter, Alex, from a previous marriage.

LAUNCHES Just call him Citizen Combs: On July 20 in NYC, rap mogul/Broadway actor Sean ”P. Diddy” Combs, 34, unveiled plans for Citizen Change, his nonpartisan campaign to mobilize America’s youth and minority voters. The mission of the program, said Combs, is to ”make voting cool.”

PROMOTIONS MTV vet Judy McGrath, 51, was appointed the music network’s chairman and CEO July 20 in NYC. She will assume the position immediately and oversee all of MTV’s channels and its subsidiaries, including Nickelodeon, Spike TV, and Noggin.

PREMIERE Sharon Stone (with costars Benjamin Bratt and Halle Berry) enjoyed taking the claws out as ”Catwoman”’s villain. ”You know that old saying,” she purred on the red carpet July 19. ”’Good girls go to heaven, and bad girls go everywhere.”’

REUNION Wu…where? After an extended hiatus, all 10 members of hip-hop supahgroup the Wu-Tang Clan (including ex-jailbird Ol’ Dirty Bastard) brought da ruckus — and a film crew — on stage at July 17’s Rock the Bells concert in San Bernardino, Calif. ”It’s been a while, but y’all look good,” RZA told the 8,500-plus crowd before launching into ”Wu-Tang Clan Ain’t Nuthin to F*** Wit” and other greatest hits. A live CD and DVD are scheduled for this fall.

COURTS On July 15, the Australian government cleared Crocodile Hunter Steve Irwin (left), 42, of charges that he got too close to penguins, a seal, and humpback whales while shooting the documentary ”Ice Breaker” last winter in Antarctica. Irwin could not be reached for comment…. On July 18, Mel Gibson’s Icon Distribution Co. filed a breach-of-contract and fraud suit in Los Angeles Superior Court against Muvico Theaters. The company behind ”The Passion of the Christ” alleges that the Fort Lauderdale-based theater chain failed to pay a promised 55 percent share of box office receipts. ”We’re not refusing to pay,” says a Muvico rep. ”We have not yet reached an agreement on what we owe.”… Marvel Enterprises, Inc. filed a breach-of-contract suit against the Walt Disney Company on July 15 in Los Angeles Superior Court, alleging that Disney’s failure to exploit Marvel’s valuable intellectual property, including the animated series ”The Incredible Hulk,” ”X-Men,” and ”Spider-Man,” has deprived Marvel of substantial revenue and diminished its long-term value. Marvel seeks $16 million in damages. Disney’s reps say it’s ”just an accounting dispute.”

ARRESTS Rapper Joe Budden, 23, pleaded guilty to driving with a suspended license in Queens, N.Y., on July 14. He spent the night in jail and paid a $300 fine. Budden’s reps had no comment…. Former ”Baywatch” star (and Carolyn Bessette Kennedy paramour) Michael Bergin, 35, was picked up by West Hollywood police after allegedly hitting a woman while driving under the influence July 16. He was released the next day after posting $50,000 in bail. No court date has been set. Bergin’s rep had no comment.