NEW YORK - "" star promised she wouldn't have a big wedding. She kept her promise.

Pompeo, who plays Dr. Meredith Grey on the hit show, whichs airs in Canada on CTV, tied the knot with record producer Chris Ivery last Friday in a ceremonial office at City Hall, with Mayor Michael Bloomberg as a witness.

Pompeo, 38, and Ivery became engaged last November, after dating for three years. In an interview last August, she said the couple didn't plan a big ceremony because "we want one thing to ourselves."

Bloomberg and Deputy Mayor Patti Harris were the two witnesses, and an official from the city clerk's office performed the ceremony, Bloomberg spokesman Stu Loeser said.