Oprah and Megan
Oprah first met Megan Castran, a Melbourne, Australia, jewelry designer, a few years ago while vacationing in Hawaii. At the time, Oprah says she told this mother of two that if she ever made it to the Land Down Under, she'd stop by for a visit. Megan added a photo of Oprah to her vision board in hopes that one day she'd arrive—and that day is here.

Every week, Megan and her husband Paul invite friends and family over for taco night, but they never expected a surprise guest. When the doorbell rings, there stands Oprah!

Oprah, Megan, Paul and the other guests party the night away with tacos and tunes.

Get Megan's taco recipe