Kayte and Kelsey Grammer

Once wasn't enough for Kelsey Grammer and his wife Kayte, who got married again Saturday, People reports.

The former Frasier star, 57, and his bride exchanged vows a second time at the Little Church of the West in Las Vegas. The intimate ceremony was partly inspired by the 1964 Elvis Presley film Viva Las Vegas.

USA developing shows from Kelsey Grammer and Dick Wolf

The bride donned a custom Peter Langner baby-doll dress and the groom wore a Tom Ford suit. The ceremony comes a month before Kayte, 31, is set to give birth to twins — the couple's first children together.

"I've always wanted shotgun wedding pictures so we can show the kids later on!" Grammer told the magazine. "We wanted to celebrate and rededicate [ourselves] to how much we love each other and to our growing family around the bend."

Kelsey Grammer and wife expecting twins

Grammer was previously married three times: to Doreen Aldermann, Leigh-Anne Csuhany and, most recently, to Real Housewives of Beverly Hills star Camille Grammer.

Said the four-time Emmy winner of his bride, whom he first married in New York last February: "I love that she had the courage to marry me twice!"

The second season of Grammer's latest series, Boss, premieres on Friday, Aug. 17 at 10/9c on Starz.