The couple - who have been engaged since 2012 - reportedly tied the knot in a secret ceremony in front of 70 guests at their Bel Air home yesterday (05.08.15) evening.

A host of famous friends were in attendance for the nuptials,

including Jennifer's former 'Friends' co-star Lisa Kudrow, DJ Howard Stern, talk show hosts Ellen DeGeneres and Chelsea Handler, actress Emily Blunt and her husband John Krasinski, photographer Terry Richardson and jewellery designer Jennifer Meyer, Us Weekly reports.

Photos posted by TMZ showed outdoor table settings, a dance floor and a cake topped with two muppet-style figurines, while a pastor holding what appeared to be a Bible was also seen at the property.

According to the website, 45-year-old Jennifer - who was previously married to Brad Pitt - had initially told friends she was throwing an early birthday party for Justin, who turns 44 next week.

And the 46-year-old actress went to other lengths to keep the party under wraps, including erecting a giant shed to hide the furniture and party supplies before things were set up yesterday afternoon, confiscating staff members' phones over the last week and not allowing parking near the house.