Demi Lovato, “HOLY FVCK.”

Vocal powerhouse Demi Lovato has been to hell and back, and not just once, amid their struggle with addiction. HOLY FVCK finds Lovato with new clarity, recording the album completely sober. To say the album recaptures some of the rock energy of Lovato’s earliest work is accurate, but only to a point. Those looking for a peppy pop-punk record will find that, but only in quick bursts.

The album as a whole is surprisingly diverse, and occasionally downright heavy, fusing grunge, hard rock, industrial and bedroom pop. What doesn’t waver from Lovato’s past work are the singer’s vocals, which remain as crisp and powerful as ever. Lovato also doesn’t go it alone, getting support from Yungblud, Royal & the Serpent and Dead Sara.

The record opens on an urgent and bouncy note with bass-heavy “FREAK,” which jumps back and forth between straightforward hard rock and trippy, half-time, spaced-out alt rocker.

“Get your tickets to the freak show baby/ Step up right up to watch the freaks go crazy,” Demi Lovato sings.

The track is a rallying cry, as well as a reflection of Lovato’s own chaotic life in recent years. Yungblud chips in with a well-placed verse and scream. It’s a fitting start for the rollercoaster ride that follows the rest of the way on the record.

Fans get a first taste of Lovato’s rock and roll style on “SKIN OF MY TEETH,” a no-nonsense song that’s infectious and anthemic. With its self-referential lyrics, it’s a wink and a nod to Lovato’s own struggles. Lovato’s vocals absolutely explode to their highest reaches on the bridge.

Few songs encompass the spirit of Lovato’s early work than “SUBSTANCE,” a punky rocker that aptly uses energy and melody. Lovato’s maturity really shines through in the lyrics, which actually take a dark tone despite the upbeat vibe. Things turn decidedly in the alt-rock direction on Royal & the Serpent collaboration “EAT ME.” While the song starts dramatic and down-tuned, things turn unrelenting by the chorus. The breakdown on the bridge is heavier than what some current rock bands have to offer.

The title track keeps the rock riffs coming, though this time they’re grungy.”HOLY FVCK” has a little bit of The Pretty Reckless personality to it, led by bluesy rock riffs and layered distorted chords in the chorus. The introspective “29” delves into the dynamics of being underage, but with hindsight. Despite the heavy subject matter, the mid-temp song still has some jump to it.

One of the album’s strongest tracks arrives in the form of “HAPPY ENDING.” It’s not as heavy as some of the prior material, but it effectively fuses melody and rock energy with a vocal delivery that’s right in the pocket. The rock returns on “HEAVY,” a fist-pumper that leans into religious lyrical imagery.

“CITY OF ANGELS” is quintessential pop-punk with huge guitars, quick rhythms and plenty of attitude. Lovato uses Los Angeles as the backdrop of a song about replacing the boring with something new and challenging. “BONES”jumps all over the place but creates an organized chaos that ends up making perfect sense.

Even in the album’s quieter moments, it still has a rock backbone. “WASTED” roars with classic rock energy on the soaring chorus. Once again, Lovato’s vocals absolutely shine, cutting through the distortion and leading the way. “COME TOGETHER” keeps things going with a similar middle-of-the-road sound before “DEAD FRIENDS” ramps things right back up.

Dead Sara lends a hand on the riff-heavy “HELP ME,” a sarcastic kiss-off track that leans into an infectious alt rock energy.

“Thank you for your useless information,” Lovato sings.

The pace doesn’t truly slow down until the final moments with a pair of stellar ballads: the piano-driven “FEED” and rootsy rocker “4 EVER 4 ME.” Both complete the sonic spectrum that HOLY FVCK travels.

While Lovato’s album is a triumph and a breath of fresh air from a supremely talented vocalist, it does also leave some questions. HOLY FVCK is a fairly dramatic departure from the artist’s poppy background. Here’s hoping Lovato’s latest work finds an audience because it’s material that deserves to be heard.

Follow writer Mike DeWald at Twitter.com/mike_dewald.