Cameron Diaz and Benji Madden shared a traditional Jewish wedding.

Why? No one knows.

The celebrity pair drew a media circus this week when it was revealed the two would tie the knot. Now, details have emerged outlining the very Jewish traditions Diaz and Madden, who are not members of the tribe themselves, decided to incorporate into their nuptials.

From the Jewish Telegraphic Agency:

Last night Cameron Diaz married Benji Madden, the guitarist for the popular punk rock band Good Charlotte, at her Beverly Hills home.

In an interesting twist, the couple had a Jewish ceremony — despite the fact that neither appears to be Jewish.

Diaz’s father was Cuban, and her mother has English and German ancestry. Madden, who started Good Charlotte with his twin brother Joel, was born to Robin Madden and Roger Combs. There is no evidence that he has any Jewish ancestry.

Furthermore, while some high-profile celebrities like Gwyneth Paltrow and Madonna have converted to Judaism or shown interest in Kabbalah, it is not readily apparent that Diaz and Madden have done either of these.

So why the Jewish wedding? US Weekly reported that the ceremony was complete with crushed glass, heartfelt chants of “mazel tov” and even a traditional Yichud ritual, during which the newlyweds were left by themselves in a private room after they said their vows.

One possible clue to a solution could lie in Madden’s middle name, which, according to his Wikipedia page, is Levi. Perhaps there is some kind of conversion or interest that the tabloids have missed there.

The newlyweds also confirmed their nuptials with a statement to People magazine, which reads, “We couldn’t be happier to begin our new journey together surrounded by our closest family and friends.”

Diaz enlisted her Charlie’s Angels co-star Drew Barrymore as a bridesmaid, along with her sister Chimene, assistant Jesse Lutz, and her new sister-in-law Nicole Richie, who is married to Madden’s twin brother Joel.

Joel and Richie’s son Sparrow served as ring bearer, while Reese Witherspoon, Gwyneth Paltrow, DJ Samantha Ronson and choreographer Robin Antin were among the 100 guests who witnessed the couple’s nuptials.

News of Diaz and Madden’s wedding plans broke early on Monday after sources leaked details about the couple’s top secret and intimate rehearsal dinner on Sunday. Barrymore even held a bridal shower at her house for her close friend over the weekend, according to Entertainment Tonight.

Diaz and Madden began dating early last summer after they were introduced to each other by Richie, and news of their engagement started swirling in early December.