5:30 PM PT -- Maggie Baugh posted a teaser on Instagram of her new song -- 'The Devil Win' -- revealing some of the lyrics, and some fans are connecting them to the rumors that Baugh was somehow involved in Keith Urban and Nicole Kidman's divorce.

MB is heard singing "I don’t know what the hell I believe in / I don’t know how to heal my soul / Or how to fight this feeling and it’s a damn good place to go / No matter how close I get to the burning edge / Tempting as it is, I won’t let the Devil win."

It's unclear what the song is about -- especially since the clip is just a portion of the full track -- but fans stop at nothing to hype up the rumors circling around online.

Maggie Baugh is breaking her silence as romance rumors swirl around her and Keith Urban ... but she's not talking about the elephant in the room -- instead, she's plugging her new music.

The rising country star hopped on Instagram Wednesday and posted a snippet of her upcoming single, "The Devil Win." She'd teased an announcement Monday, and this seems to be what she was referring to.

A source with knowledge tells TMZ ... Keith was not involved with any aspect of the album ... and he's not listened to it.

Maggie's post comes as fans run with theories that she is seeing Keith amid his divorce from Nicole Kidman. She's been mum on the rumors, which has only served to fuel the gossip firestorm.

As you know ... Keith changed the lyrics to "The Fighter" -- a song about Nicole -- to reference Maggie instead.

Fans are also looking back at a freshly unearthed 2017 video where Maggie says she had a "no dating the band" rule.