08/06/2015 01:57 EDT | Updated 08/06/2015 01:59 EDT

Jennifer Aniston Gets Married To Justin Theroux

Jennifer Aniston, 46, and Justin Theroux, 43, surprised friends and family by getting married on Wednesday night.

The "Friends" actress and "The Leftovers" star held a huge backyard bash at their Bel Air mansion mid-week, inviting about 70 guests to a party disguised as Theroux's birthday, People reports. The actor turns 44 on Monday.

Us Magazine reports that guests included former "Friends" co-star Lisa Kudrow, Howard Stern, Sia, Chelsea Handler, Emily Blunt, John Krasinski and Ellen DeGeneres.

Theroux's birthday is an important date for the couple, who got engaged on the same day, August 10, in 2012.

While reps for the famous couple have yet to confirm the nuptials, TMZ reports that a pastor was spotted on the grounds the same night as the party, carrying a bible. A cake with both a male and female puppet was seen being wheeled into the house.

This is the first marriage for Theroux and the second for Aniston, who was famously married to Brad Pitt before he ended up with Angelina Jolie.

Jennifer Aniston and Justin Theroux