Gwen Stefani's sons are the most dapper little gentlemen. The singer's three boys from her marriage to Gavin Rossdale—Kingston, 9, Zuma, 7 and Apollo, 2—accompanied their famous mom to the wedding of her close friend, Zelva, all dressed in their too-cute tuxedos.

All three boys played very important parts in the day's festivities: Kingston served as ring bearer, Zuma helped to carry the bride's train, and Apollo sat in for Blake Shelton as their gorgeous mom's date. And luckily for us, Stefani—who rocked a leopard print dress and a dip-dye hair 'do for the occasion—documented every adorable moment on Snapchat.

RELATED: Gwen Stefani Opens Up About Protecting Her Kids While Penning Her New Album

Scroll down to see all the day's cutest moments:

What great kids. Keep up the good work, Gwen!