Zac Efron, Kristen Stewart & Robert Pattinson: Pal's Wedding!

Kristen Stewart and Robert Pattinson attend producer Kevin Turen‘s wedding on Saturday (June 23) in Englewood, N.J.

The couple, along with Zac Efron and Andrew Garfield, helped their producer pal celebrate his nuptials with Evelina Oboza. Some lucky younger guests at the reception spotted the celebs and posted their pics on Instagram and Facebook!

Rob manned the DJ’s laptop for a bit, while a solo Zac participated in the hora, a traditional Jewish dance, according to People.

Kristen reportedly forgot her dress en route to the ceremony so she borrowed a short Zac Posen dress from the groom’s sister’s closet. She later changed into a more comfortable black tank with jeans and a blazer.

“There was a little area where you could go and play music,” a guest told Us Weekly. “Rob sang, Andrew played the bongos, Zac played the guitar. It was a whole spectacle!”

10+ pictures inside of Robert Pattinson, Kristen Stewart, and Zac Efron at Kevin Turen‘s wedding…