LAST CALL

Despite reports of tensions on the set prior to Shelley Long's departure from the NBC sitcom Cheers in 1987, it is virtually assured that she will be back to reprise her role as Diane Chambers, the flighty barmaid, for the show's final episode, which airs May 20.

Apparently her coworkers at Good Advice, Long's new CBS series, were in on this early, since she had asked to take a break from her promotional duties for Good Advice from March 25 to March 31, the very same days that Cheers will be taping its last hurrah.

TUNED UP

Frank Sinatra, who hasn't recorded an album since 1984's L.A. Is My Lady, may be beaded back into the studio. Sinatra's rep and executives at Capitol Records tell us that "preliminary discussions" are under way for Sinatra to return to Capitol, the label for which he recorded from 1953 until he founded Reprise Records in the early '60s....

Oscar nominee Robert Downey Jr., whose version of the Charlie Chaplin song "Smile" appears on the Chaplin sound track, has been signed to an album deal by Epic Records. Part of the lure was Downey's own song-writing ability, the style of which a source describes as "modern pop."...

Forget about a Cream reunion album. Although Eric Clapton. Jack Bruce and Ginger Baker reassembled their '60s supergroup for a brief appearance at the recent Rock and Roll Hall of Fame awards show and Baker has hinted at a possible new LP, it's not going to happen. Clapton's rep says firmly that Clapton "has no plans to go into the studio with Cream."

CAN WE TALK?

After Oprah Winfrey's highly rated TV interview with Michael Jackson on ABC last month, we couldn't help picturing a jealous Barbara Walters sitting at home sticking pins into her Oprah doll. After all, Walters admits to having tried unsuccessfully to land Jackson for an interview years ago. But Walters insists there are no hard feelings. "I think Oprah did a wonderful interview," Walters says. "I enjoyed watching it. In fact, I sent a letter of congratulations to her."

Still, Walters may want to watch her flank. Winfrey's rep says Oprah is gunning now for Princess Di and Jacqueline Onassis.

HEY, STEPHANIE, RING BACK AXL
Now that Axl Rose and model Stephanie Seymour have broken off their two-year-plus romance, what's become of the 4.5-carat diamond-and-ruby ring that Rose gave Seymour? Although sources tell us the two are speaking again, Rose hasn't asked for the ring back. (Axl apparently always considered the six-figure gift to be an engagement ring—even though the two were never formally engaged.) As for Seymour, she's not saying what she plans to do.

MOUSSE ON THE LOOSE
Forget the booze and Evian water, Ex-Blondie lead singer Deborah Harry has a new stage manner for the '90s—hair mousse. At a recent benefit concert, Harry brought a bottle of the stuff onstage. Between rock songs, she pumped a big glob into her palm and then worked it through her hair for that city-slicker look.