Christina Aguilera dons plaid pantsuit to perform on Late Night… 4 days before her 40th birthday

Christina Aguilera dons plaid pantsuit to perform on Late Night… four days before her 40th birthday

Five-time Grammy winner Christina ‘Xtina’ Aguilera served musical guest duties on Monday’s episode of Late Night with Seth Meyers from the comfort of her $10M Mulholland Estates mansion.

The platinum-blonde pop diva – turning the big 4-0 this Friday – wore a sexy body chain beneath her plaid pantsuit and sky-high stilettos selected by stylist Dani Levi.

Christina – who boasts 55.3M social media follower – shared BTS snaps of her look including a waist-length high ponytail extension fastened by hairstylist Iggy Rosales.    

Her Christmas décor! Five-time Grammy winner Christina ‘Xtina’ Aguilera served musical guest duties on Monday’s episode of Late Night with Seth Meyers from the comfort of her $10M Mulholland Estates mansion

Aguilera’s fully-contoured complexion and Rokael Beauty lashes were applied by make-up artist Etienne Ortega, and her pink manicure was painted by nail artist Chaun Legend.

The former Mouseketeer performed a cover of Robert Wells & Mel Tormé’s 1945 chestnut The Christmas Song, which was featured on her 2000 holiday album My Kind of Christmas.

Christina last used her unmistakable four-octave soprano pipes on the track, Loyal Brave True, for the Mulan soundtrack on March 6.

However, Aguilera hasn’t released a full-blown record since her eighth studio album, Liberation, back in 2018.  

Sipping: The platinum-blonde pop diva - turning the big 4-0 this Friday - wore a sexy bodychain beneath her plaid pantsuit and sky-high stilettos selected by stylist Dani Levi

Sipping: The platinum-blonde pop diva – turning the big 4-0 this Friday – wore a sexy bodychain beneath her plaid pantsuit and sky-high stilettos selected by stylist Dani Levi

Ariana who? Christina shared BTS snaps of her look including a waist-length high ponytail extension fastened by hairstylist Iggy Rosales

Ariana who? Christina shared BTS snaps of her look including a waist-length high ponytail extension fastened by hairstylist Iggy Rosales

'20 years!' Aguilera performed a cover of Robert Wells & Mel Tormé's 1945 chestnut The Christmas Song, which was featured on her 2000 holiday album My Kind of Christmas

’20 years!’ Aguilera performed a cover of Robert Wells & Mel Tormé’s 1945 chestnut The Christmas Song, which was featured on her 2000 holiday album My Kind of Christmas

'Tonight!' It was the former Mouseketeer's second time on the NBC chat show

Late Night also featured 12-time Grammy-winning country trio, The Chicks

‘Tonight!’ It was the former Mouseketeer’s second time on the NBC chat show – which also featured 12-time Grammy-winning country trio, The Chicks

It was the Staten Island-born, half-Ecuadorian belter’s second time on the NBC chat show – which also featured 12-time Grammy-winning country trio, The Chicks.

On the personal front, Christina has two children – son Max, 12; and daughter Summer, 6 – with ex-husband Jordan Bratman and her Burlesque PA-turned-fiancé Matthew Rutler.

There’s still no date set for Aguilera’s long-awaited nuptials to the 35-year-old MasterClass investor, who popped the question way back on Feburary 14, 2014.

2019 family portrait: On the personal front, Christina has two children - son Max, 12; and daughter Summer, 6 - with ex-husband Jordan Bratman and her Burlesque PA-turned-fiancé Matthew Rutler (R)

2019 family portrait: On the personal front, Christina has two children – son Max, 12; and daughter Summer, 6 – with ex-husband Jordan Bratman and her Burlesque PA-turned-fiancé Matthew Rutler (R)