Where's the bling? Lady Gaga flashes lacy bra and hint of her knickers on night out... but no sign of her engagement ring

She's accepted Taylor Kinney's proposal on Valentine's day this year and has been planning her dream wedding.  

But Lady Gaga appeared to have slipped off her bling diamond engagement ring as she hit Lisa Vanderpump's West Hollywood hot spot Pump Lounge for the third time in as many weeks on Tuesday night.

The 29-year-old singer also appeared to have forgotten her shirt as she flashed her underwear as she headed from her regular haunt restaurant. 

Night out: Lady Gaga was back for her third visit in as many weeks to Lisa's West Hollywood hot spot Pump Lounge on Tuesday

Night out: Lady Gaga was back for her third visit in as many weeks to Lisa's West Hollywood hot spot Pump Lounge on Tuesday

The Poker Face hit-maker was clad entirely in black with her platinum blonde locks falling round her shoulders, which - combined with her near-naked torso - gave her something of the look of a mermaid. 

She flashed her taunt abs in the racy outfit  showing a hint of her knickers - which she also shared with Instagram followers in a snap with a pal which appears to be taken inside the venue.

Gaga is seen wearing a lacy half-cup bra with a traditional martini at the forefront of the shot, as she leans on the shoulder of a male friend. 

Bare Hands: The Born This Way star appeared to have slipped off her bling diamond engagement ring

Bare Hands: The Born This Way star appeared to have slipped off her bling diamond engagement ring

Where is it? The star does appear to be minus her ten-carat, heart-shaped diamond engagement ring for the evening

Where is it? The star does appear to be minus her ten-carat, heart-shaped diamond engagement ring for the evening

She captioned the picture: 'Talkin s*** with the gurls' (sic).

The star covered her bronzed highlighted eyes in dark round-framed sunglasses, as she exited, and kept her make-up simple - adding a striking slick of vibrant red lipstick. 

The Just Dance singer - whose real name is Stefani Germanotta - chose a black two-piece wide-legged pant suit for her outing. 

Cheeky: The 29-year-old singer appeared to have forgotten her shirt as she flashed her underwear as she headed from her regular haunt restaurant

Cheeky: The 29-year-old singer appeared to have forgotten her shirt as she flashed her underwear as she headed from her regular haunt restaurant

Known for wearing eccentric shoes, it's a shame her footwear can't be seen below her hem line as they are - no doubt - spectacular as usual.  

Gaga put her left hand in her pocket as she was photographed, however, does appear to be minus her ten-carat, heart-shaped diamond engagement ring for the evening. 

Six weeks ago she showed off the impressive rock on her instagram, and appeared to be wearing it in photos posted three days ago. 

Formal: The Just Dance singer - whose real name is Stefani Germanotta - chose a black two-piece wide-legged pant suit for her outing

Formal: The Just Dance singer - whose real name is Stefani Germanotta - chose a black two-piece wide-legged pant suit for her outing

Flashing: Gaga is seen wearing a lacy half-cup bra with a traditional martini at the forefront, as she leans on the shoulder of a male friend seemingly inside the venue

Flashing: Gaga is seen wearing a lacy half-cup bra with a traditional martini at the forefront, as she leans on the shoulder of a male friend seemingly inside the venue

Mermaid: The Poker Face hit-maker was clad entirely in black with her platinum blonde locks falling round her shoulders

Mermaid: The Poker Face hit-maker was clad entirely in black with her platinum blonde locks falling round her shoulders

The star has struck up an unlikely friendship with Real Housewife of Beverly Hills' Lisa, 54, sharing a few nights out over recent weeks, which she has documented with pictures. 

She's spreading her acting wings to play a murderous socialite and hotel owner in the new season of American Horror Story, which will debut on FX on October 7.

The upcoming fifth season will chronicle the blood-thirsty Countess, who is the mother of 10 identical eight-year-old vampires, which Gaga is playing opposite returning cast members Sarah Paulson, Evan Peters, and Kathy Bates. 

Showbiz pals: The star has been spotted numerous times hanging out at the venue, including sharing a shot with fans of her posing with owner Lisa Vanderpump recently

Showbiz pals: The star has been spotted numerous times hanging out at the venue, including sharing a shot with fans of her posing with owner Lisa Vanderpump recently

And jersey nails ��#home

A photo posted by The Countess (@ladygaga) on

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