Noah Cyrus got fans excited with an onstage reunion with dad Billy Ray at her London album release event … and despite their messy history, she’s telling TMZ family truly reigns supreme!

We bumped into Noah at LAX Thursday, and she spilled the tea while strolling hand-in-hand with her fiancé, Pinkus — declaring music and family are at the heart of everything, and yep, things are definitely cruising smoothly.

As we all know, the Cyrus family’s had its fair share of drama — rumors of tension between Noah and Billy were all over the place. But looks like they’ve kissed and made up.

It was crystal clear when Billy showed up to support Noah at her album launch, “I Want My Loved Ones to Go with Me,” at London’s Islington Assembly Hall. And of course, he brought along his GF, Elizabeth Hurley, for the ride!

But when we asked Noah about Hurley at LAX, she zipped it. Guess they’re keeping all that family gossip under wraps.