Gwen Stefani's boys had a starring role in her friend's wedding — and the pics are the cutest!

Mom and sons traveled to Orange County, Calif. to attend family friend Zelva's nuptials over the weekend. Kingston, 9, was the ring bearer and Zuma, 7, walked the bride down the aisle. Little Apollo, 2, stayed on his mom's lap during the ceremony.

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Kingston (left) and Zuma (right).

And look how handsome and grown-up Kingston is in his suit as the "man of the rings"! Isn't he adorable? Gwen, 46, looked pretty chic herself in a leopard-print, off-the-shoulder dress at the event.

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Gwen and her ex-husband, Gavin Rossdale — who were hitched from 2002 until 2015 — previously welcomed Kingston in May 2006, Zuma in August 2008 and Apollo in February 2014. Gwen and Gavin announced their divorce in August 2015 after 13 years of marriage.