Lady Gaga bared all Sunday night at the swanky West Hollywood hotspot Chateau Marmont in a see-through studded bodysuit that not only showed off all her best assets, but also a rashy patch on her buttocks, has all the photos.

The provocative outfit — which showcased a sexy black bra and black thongs underneath a bedazzled clear outfit — was topped off with a pair of Christian Louboutin high heels.

Gaga, 27, appears to have a rash of acne on her rear end that was photographed by eager paparazzi waiting outside the venue.

Lady Gaga

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SOURCE: PACIFIC COAST NEWS

Lady Gaga leaves little to the imagination as she arrives at Chateau Marmont in Los Angeles with her boyfriend Taylor Kinney on August 11, 2013.

Lady Gaga

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SOURCE: PACIFIC COAST NEWS

Lady Gaga leaves little to the imagination as she arrives at Chateau Marmont in Los Angeles with her boyfriend Taylor Kinney on August 11, 2013.

Lady Gaga

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SOURCE: PACIFIC COAST NEWS

Lady Gaga leaves little to the imagination as she arrives at Chateau Marmont in Los Angeles with her boyfriend Taylor Kinney on August 11, 2013.

Lady Gaga

//pcnex_gaga

SOURCE: PACIFIC COAST NEWS

Lady Gaga leaves little to the imagination as she arrives at Chateau Marmont in Los Angeles with her boyfriend Taylor Kinney on August 11, 2013.

Lady Gaga

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SOURCE: PACIFIC COAST NEWS

Lady Gaga leaves little to the imagination as she arrives at Chateau Marmont in Los Angeles with her boyfriend Taylor Kinney on August 11, 2013.

Lady Gaga

//

SOURCE: PACIFIC COAST NEWS

Lady Gaga leaves little to the imagination as she arrives at Chateau Marmont in Los Angeles with her boyfriend Taylor Kinney on August 11, 2013.

Lady Gaga

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SOURCE: PACIFIC COAST NEWS

Lady Gaga leaves little to the imagination as she arrives at Chateau Marmont in Los Angeles with her boyfriend Taylor Kinney on August 11, 2013.