Gwen Stefani, 54, shows off taut tummy as she poses with hubby Blake Shelton, Post Malone, and Machine Gun Kelly at CMA Fest in Tennessee

Gwen Stefani attended CMA Fest in Tennessee this week, where she posed alongside husband Blake Shelton, Post Malone and Machine Gun Kelly.

The music artists – Gwen, 54, Blake, 47, Post Malone, 28, and MGK, 34 – all flashed megawatt smiles at the event.

Stefani – who wished son Kingston a happy 18th birthday in late May – bared her toned stomach in a low-cut black bra and a green and gold plaid shirt that she wore with only the collar buttoned.

The fashionista added a pair of cut-off denim shorts, which she wore over sheer black lace tights.

Her signature platinum blonde hair was styled into three knotted buns, creating a faux mohawk.

Gwen Stefani attended CMA Fest in Tennessee this week, where she posed alongside husband Blake Shelton and Post Malone

Stefani, who runs the makeup company GXVE, wore a full face of flattering cosmetics.

The mother of three – who shares Kingston, Zuma, 15, and Apollo, 10, with ex-husband Gavin Rossdale – brought out her eyes with fluttering lashes.

She dusted her cheeks with pink blush and completed her flawless look with a glassy pink lip gloss.

The rock star, frontwoman of No Doubt, showed off long, striking French-manicured nails.

Meanwhile, her husband Blake, whom she married in 2021, was dressed in his usual casual look: a button-up shirt and jeans.

He took the stage at the event and Gwen was a proud woman as she recorded his performance and shared it on Instagram.

She also cheered on Post Malone, who at one point performed with Shelton as they each strummed acoustic guitars.

Machine Gun Kelly, for his part, wore a black Crazy Town T-shirt and a red hat.

Gwen also posed with rapper and rocker Machine Gun Kelly

Gwen also posed with rapper and rocker Machine Gun Kelly

The music artists all showed their smiles during the event

The music artists all showed their smiles during the event

MGK, born Colson Baker, wore a black “Crazy Town” T-shirt and a red hat

MGK, born Colson Baker, wore a black “Crazy Town” T-shirt and a red hat

Gwen is fresh off her performance at the 2024 ACM Awards, held in Texas in mid-May.

She fittingly wore a stunning plum-colored costume to sing her song Purple Irises with husband Blake.

Gwen released the single in February and said in a clip shared on social media that she wrote the tune at a time when she was feeling “insecure.”

The awards ceremony was held at The Star’s Omni Frisco Hotel and Reba McEntire took over hosting duties for the 17th time.