Meghan Trainor, “Timeless.”

Timeless is a fitting album title for pop hitmaker Meghan Trainor. While the album is firmly rooted in pop, the nods to doo-wop and classic vocal standards permeates almost all the material. Trainor has always fused these worlds musically to some degree, but the synthesis feels like it’s deeper this time around. The 30-year-old singer also again gives herself a little credit, with a resonating message of self-empowerment and positive up-talk

“I wanna thank me and kiss myself/ I wanna thank me right now and no one else,” Trainor sings on peppy stomper “I Wanna Thank Me,” a song that also features actress and singer Niecy Nash.

Trainor also arrives with with a fresh perspective and point of view as a mother of two. Her positive messages are now tethered to family times. A prime example is opener “To the Moon,” a swanky track that’s doused in brass and a tight groove. Trainor directs her optimism to her kids, with a nurturing and bright message.

“I’ve got a spaceship; come get in/ For the ride of your life/ My love’s gonna take you to the moon,” she sings.

The bouncy “Been Like This” not only taps the versatile T-Pain for vocals, but also brings an energizing rhythm that echoes that of fellow songwriter Andy Grammer. The voices of the two singers mesh well, and it’s a fun bonus to hear T-Pain singing in a classic style with which he’s not typically associated (though he showed his range at BottleRock recently). The track is one of the most infectious on the record, with an instantly memorable toe-tapping rhythm. T-Pain makes a return visit later on the album for the more modern-sounding “Love On Hold,” brings his signature Auto-Tuned vocals.

“Crowded Room” has the brassy sway of “All About the Bass,” but delivers a very different-sounding harmonized vocal; one that’s more quiet and intimate. The poppy “Whoops” cranks the clock forward and adds a modern minimalistic pop sound, akin to that of Ariana Grande. The snarky track targets a lover gone astray with a whimsical tone than you might expect for a break-up track.

Fellow throwback purveyors Lawrence show up on vocal-heavy tune “Crushin’,” a sunny pop track with a sneaky rhythm. “Forgot How to Love” flips the script, with a bluesier downbeat groove and a more intimate feeling. Vocally, it might be one of the stronger tracks on the record.

The boisterous “Rollin’” delivers a sound familiar to Trainor fans with big pop hooks and production through a Brill Building lens.

“This one is for the girls out there with opinions,” she declares.

For an album with 16 tracks, Timeless always feels fresh. While Trainor’s style is well-defined, these songs never get stale. Each one brings something unique to the table, as evidenced in the Cuban-inspired rhythms of “I Don’t Do Maybe.” Rousing anthems like “I Get It” and “Sleepin’ On Me” add to the energy and keep the momentum alive. The big beats continue with the sarcastic snark of “Hate It Here.” Every time it seems like the record might start losing steam, it pivots and reinvents itself enough to hold your attention.

“Bestie” is a lively and innocent ode to friendship that keeps it simple while delivering a sweet message. For all of the classic sounds on the album, the upbeat “Doin’ It All” is one of the few that references more of an ’80s synth pop sound. The record closes out with vocal-led rhythmic ballad “Timeless.”

Follow writer Mike DeWald at Twitter.com/mike_dewald.