Britney Spears' estranged husband Sam Asghari shows off his sculpted muscles in clinging tank top... after she posed with NO UNDERWEAR

Britney Spears' estranged husband Sam Asghari radiated Hollywood magnetism when he surfaced in Los Angeles on Halloween.

The 29-year-old fitness trainer flaunted his credentials in a tank top that bared his musclebound arms and fell flatteringly on his sculpted torso.

His dark hair was swept up into a stylish coiff, and he had allowed a dashing bit of scruff to grow over his cloven-in-marble features.

Sam - who recently revealed he 'already read' Britney's shocking new memoir prior to publication and was 'proud' of her - seemed in bright spirits on Tuesday.

He wished his fans a Happy Halloween by posting a steamy gym selfie to his Insta Stories and urging them to 'stay safe out there.'

Although speculation has been swirling around Sam's love life since he filed for divorce from Britney in August, he put the kibosh on the rumors to TMZ. 

When asked if he had dipped his toes back into the dating pool, he replied: 'No. I'm focused on work right now so, you know, that's what I'm doing.' 

His latest sighting came the day Britney celebrated Halloween by staging a small fashion show inside her $11.8M Calabasas mansion for the viewing pleasure of her captive 42.4M Instagram following.

The semi-retired pop star left little to the imagination in a completely sheer side-split dress featuring three silver chains draped over her naked hips.

Britney was cradling one of her five dogs - a Maltese called Lacey Loo - on her bikini-clad chest in the clip set to J Balvin and Willy William's 2017 song Mi Gente. 

Meanwhile, in the first of three videos the 41-year-old Grammy winner posted on Tuesday night, she flashed substantial under-boob cleavage while wearing a sheer black dress with sexy cut-outs.

Britney modeled the mesh creation while grooving along to Janet Jackson's 1993 song You Want This.

She then changed into a mini-dress featuring a silver sparkly top while posing in front of her stripper pole. 

Spears then slipped her slim 5ft4in figure into a red dress exposing her arm, abs, and legs while posing in front of her Christmas tree in a clip set to Madonna's 2012 song I'm Addicted.

The Hold Me Closer hitmaker's critically-acclaimed memoir The Woman In Me has sold 400K copies since hitting shelves one week ago - according to TMZ.

Simon & Schuster paid Britney a $12.5M advance (25% of the net profits) to pen the 288-page tell-all with three 'collaborators' aka ghostwriters.

Two people close to the project told the New York Times on Tuesday that author Ada Calhoun 'helped create the first draft' and author Sam Lansky 'was the next to join' The Woman In Me team.

'The book was completed with the assistance of Luke Dempsey,' the insider told the mag of the final author to contribute.

And on Monday, Deadline reported that 'buyers are circling' Spears autobiography to make bids on the rights to make a potential limited TV series based on the book.