'It Was The Best Day of Her Life'

Us goes inside Selena Gomez and Benny Blanco's I do's, complete with emotional vows, barefoot dancing and a speech from Taylor Swift

- by JAIME HARKIN & AMANDA WILLIAMS

"Selena had some nerves before her first look with Benny, but from that moment on, she was radiating joy," says a source.

There wasn't a dry eye in the house when Selena Gomez recited her personalized vows to Benny Blanco at their Santa Barbara, California, wedding on Sept. 27. “Everyone was sobbing,” says a Gomez source. “It was extremely emotional.” Blanco’s vows were just as meaningful — the music producer paid tribute to Gomez's younger sister, Gracie, and presented the 12-year-old with a coupon book good for hangouts and shopping sprees with them.

The couple, who announced their engagement last December, tied the knot in front of roughly 170 guests at the scenic Sea Crest Nursery. The bride, 33, wore custom Ralph Lauren, and the groom, 37, donned a tux by the iconic designer. Shoes were optional — the source says the newlyweds were barefoot for their first dance, a choreographed number inspired by Dirty Dancing and