By Stephen M. Silverman
Updated December 06, 2002 10:45 AM

REUNITED: Julianna Margulies and George Clooney, former costars on NBC’s “ER” (as nurse Carol Hathaway and Dr. Doug Ross, respectively), are both scheduled to appear on Monday’s “Tonight” show, Margulies, 35, tells reporters. “My fear would be if anything that he would pull some sort of prank,” said actress, who still sees her former costar. “I was at his premiere last week for ‘Solaris,’ and we’re in touch probably once a week I’d say, at least,” Margulies said. Perhaps the two of them can explain that movie, then.

HOSPITALIZED: Cuban singer Celia Cruz, 77, was in stable condition Friday after undergoing emergency surgery of an undisclosed nature, her agent, Omed Pardillo, tells the Associated Press. The two-time Latin Grammy winner, credited with sparking a worldwide interest in salsa, complained of ill health Wednesday night at her New Jersey home and was immediately hospitalized. “Thank God the operation was a complete success, and right now she is in stable condition,” Pardillo said.

DIED: Broadcasting giant Roone Arledge,71, an ABC News and Sports legend responsible for creating shows from “Monday Night Football” to “Nightline” and for popularizing the Olympics on TV, died of cancer Thursday, a network spokesman said. “Roone Arledge revolutionized television and with it the way people see and understand the world,” ABC News President David Westin said in a statement. “He was our leader and our friend, and we will miss his passion and his will to make us all better than we were.” The 36-time Emmy winner, who in 1961 created “ABC’s Wide World of Sports,” was cited as one of the 100 most important Americans of the 20th century by Life magazine in 1990.

PERFORMED: Backstreet Boy Nick Carter, 22, sang eight songs during a concert Wednesday before some 1,000 students of Wisconsin’s Wilmot High School, which won a contest by donating more than 10 tons of food for the needy, AP reports. “I’m a small-town kind of guy,” said Carter, who was born in Jamestown, N.Y., and grew up in upstate New York and in a small Florida town. Wilmot sophomore Clair Caldwell returned home with a souvenir — a strip of a sweat-stained towel that Carter had tossed into the crowd. “We ripped it so more people could have a piece,” Caldwell said.