We knew it was going to happen, but now it's official. On Thursday, it was announced that the Piano Man himself,

Billy Joel

, will make his Philadelphia Orchestra debut Jan. 26 to celebrate the 151st anniversary of the Academy of Music.

According to the Associated Press, the program - to be led by outgoing Orchestra Man

Christoph Eschenbach

- also will include the

Blue Man Group

, soprano

Disella Larusdottir

, and pianist

Conrad Tao

.

Joel, 58, will play some of his tunes, and the orchestra will present the world premiere of a new orchestration of his classical composition

Waltz No. 2 (Steinway Hall)

.

A portion of the proceeds will support the orchestra's Billy Joel Endowment Fund for Education.

It's over

Or it will be soon. The marriage of

Sean Penn

and

Robin Wright Penn

, that is. The two are splitting up after 11 years, they announced yesterday, according to People mag. Their rep,

Mara Buxbaum

, confirms that the couple, who have two teenage children, will be going their separates. Those are the only details available so far.

Now comes the chaser

First

Rebecca De Mornay

gets arrested on Oct. 30 for a traffic violation in Beverly Hills when officers smelled alcohol on her breath.

Now, according to the AP, she's been charged with one count of driving under the influence of alcohol or drugs, and one count of driving with a blood alcohol level above the legal limit of .08.

De Mornay, 48, was scheduled to be arraigned Monday. Calls to her representatives were not immediately returned.

Misery tour

Amy Winehouse

will be taking her troubles on the road.

The messed-up singer has been summoned to appear in court in Bergen, Norway, after appealing her fine for marijuana possession, the AP reports.

"I can confirm that she must appear in court," Bergen police spokeswoman

Liv Karlsen

said Thursday. "If one appeals a conviction, it's the rule that one has to appear in person, so this is not surprising."

Winehouse, 24, and her husband,

Blake Fielder-Civil

, 25, were arrested for possession of about a quarter-ounce of weed in Bergen on Oct. 18 and held overnight.

The next day, after coughing up $715 to pay their fines, they continued their merry way on a European tour.

Winehouse later claimed she didn't know what she had put her signature to. That sure sounds plausible under the circumstances, only police say they are certain that she did know, and that fluent English speakers even gave her some help.

Good news, bad news

That's what has come Miss France 2008's way.

Valerie Begue

, 22, will keep the crown she won Dec. 8, notwithstanding racy photos that recently appeared as if by magic in a gossip magazine, but will not be allowed to compete in the Miss World or Miss Universe pageants. So declared Miss France organizers yesterday.

Begue described the outcome as "a compromise which satisfies all parties."

Photos published in the French mag Entrevue last week included one of a bikini-clad Begue lying on a cross in a swimming pool. Another showed her licking what appeared to be yogurt or evaporated milk. Indeed.

Contact "SideShow" at sideshow@phillynews.com.

This column contains information from Inquirer wire services.