Justin Timberlake was a guest at the same-sex marriage of wife Jessica Biel’s college roommate in Norwalk, Connecticut this past weekend, and he offered up a one-of-a-kind wedding gift for the happy couple. JT played the part of an impromptu wedding singer.

The wedding had been planned long before the Supreme Court ruling legalizing same-sex marriage last week, but the coincidence of the timing wasn’t lost on anyone there, making for an extra joyous occasion. Jessica Biel was roommates at Tufts University with bride Dana Panzer as she tied the knot with Amy Wicker on Saturday. Justin Timberlake knew he could add an extra element of awe to the occasion, so he sat down at a keyboard and played several of his own musical hits.

The two brides took to the dance floor as Justin Timberlake played and sang.

“Throughout the night, Justin really let loose and he started dancing in the middle of the wedding circle having an amazing time dancing to this great band,” a source told Us Weekly. “Then Justin decided he wanted to put on a little concert for the two brides and he jumped on the stage. It was awesome and so special for the brides and all the guests who were so impressed!”

.@JTimberlake performed at @JessicaBiel's college roommate's wedding: http://t.co/QPPjGdOE5O pic.twitter.com/CUHAiJz7ug

— CELEBUZZ (@CELEBUZZ) June 30, 2015

Jessica Biel and Justin Timberlake left their new baby boy Silas at home. A source at the wedding said the 7th Heaven star doesn’t look like she just had a baby.

“She looked amazing. You would never know she just had a baby because she is slim and trim,” the source said.

Which old hit did @JTimberlake dust off for the newlyweds that he serenaded over the weekend? http://t.co/vSp5zJhC4D

— VANITY FAIR (@VanityFair) June 30, 2015

Kudos to Justin Timberlake for making this couple’s wedding even more special by sharing his gift of music with them and all their guests. What a momentous occasion the wedding of Dana Panzer and Amy Wicker was–not only for them, but for all in attendance as well.