Best known for her 2014 mega-hit “All About That Bass,” Meghan Trainor is back and more confident than ever on her latest project “Treat Myself.”

Stepping back into the spotlight four years after her last album “Thank You” was released, Trainor hasn’t lost her signature hip-hop flare and sass.

“Treat Myself” ushers Trainor’s sound into a new decade, adding upgraded production with futuristic synths, intricate instruments and high-tech beats.

The album opens with “Wave,” which might be both the album’s best song and Trainor’s best song to date. It begins with a gospel-inspired blend of sound and vocals backing Trainor’s smoldering lyrics. About a minute into the song the beat drops, giving the song an electro-hip-hop feel.

Detailing Trainor’s commitment to love, despite its ups and downs, she sings, “Take me like a wave, pull me back and forth / Crash into my arms, tell me I am yours.” Producer Mike Sabath, who has produced for Liam Payne and J Balvin, adds a melodic verse and enhances the song’s melodic groove. “Wave” is a mature anthem, supplementing the sugary pop bounce of Trainor’s early career with inexplicable grace and ease.

Nicki Minaj joins Trainor on the album’s second track “Nice to Meet Ya,” which is engineered to be the album’s hardest hitting banger. Trainor’s signature carefree spirit is at full force on the track and is complimented by a pulsing hip-hop beat complete with keyboard stabs, heavy bass and danceable drums. Minaj flawlessly offsets Trainor’s vocals with her fierce verse and reminds listeners why she is such a powerful force in the rap industry.

While much of “Treat Myself” features energetic beats, Trainor shows she isn’t afraid to strip down the production and show a more intimate, emotional side of herself.

She details her journey to self-love on “Workin’ on It.” She reflects on a woman’s experience of loving herself, flaws and all. Lyrics like “Never been asked to dance / ’Cause I never been the pretty one / Never like compliments / ’Cause it’s always been so hard believin’ them” and “Time to be good to me / I should give myself way more love” are relatable and raw, capturing the subject of insecurity with mature elegance.

The additions of Lennon Stella of the Canadian duo Lennon & Maisy and Los Angeles pop artist Sasha Sloan add to the intimacy of Trainor’s heartfelt confession. The trio combine their vocals into a lush soundscape and further reinforce the song’s empowering theme.

“Here to Stay” falls in the middle of the album and could easily get lost between the dynamic pop pulse of its surrounding tracks. However, there is something undeniably special about the song, as it showcases a side of Trainor’s voice she doesn’t often share. Her instrumental range is on full display as the song is carried by a simple acoustic guitar instead of her typical electronic production.

Trainor returns to her signature pop and hip-hop blend at the end of the album. The addition of the Pussycat Dolls on “Genetics” brings back the bold rhythm that is inseparable from Trainor. The song continues with the theme of self-love as she trills, “How you get that bass? Is it all fake? Made in LA?” The recently reunited Pussycat Dolls are a strong addition, bringing even more sassy energy to the track.

The album closes excellently. Produced by Mike Sabbath, “Have You Now” is a candy-coated delight of a love song. The danceable track combines styles, starting subtly and transitioning to moments of EDM and pop. She croons, “I’m glad I have you now / I’ve waited all this time / So don’t let me down.” “Have You Now” closes “Treat Myself” in a distinctly Trainor fashion and has proven to have success both with fans and commercially.

The genre-fusing album is a testament to Trainor’s talent, range and lyricism. It is a dynamic showcase of R&B, rap, EDM and pop. Intense, anthemic choruses fall alongside intimate, honest contemplation. Trainor is more confident and mature than ever, fully embracing her message of self-empowerment while also adding a sophisticated romanticism. Do yourself a favor and treat yourself to “Treat Myself.”