Lily Allen flashed her bra beneath a sheer black shirt on Thursday as she attended a private party in New York's Greenwich Village.
The singer, 41, cut a chic figure in a grey maxi skirt teamed with the black shirt, beneath which she showed off a glimpse of her underwear.
She accessorised her party look with pointed black heels and a patent black handbag, while her raven locks fell loosely over her shoulders.
Troye Sivan was also in attendance at the exclusive bash. The Australian singer-songwriter, 31, wore a brown checked shirt and baggy brown trousers as he made his way inside, and has in the past counted Allen as a musical inspiration.
Other guests at the party
Harrison Patrick Smith, known by his stage name The Dare, flashed a peace sign as he made his way into the late-night gathering.
Lily Allen on her relationship
Allen made rare comments about her relationship with Jonah Freud last month, admitting she can be "high maintenance" with boyfriends.
She has been dating Freud, 29, the son of entrepreneur Matthew Freud and his ex-wife Caroline Hutton, and the great-nephew of the late artist Lucian Freud, for at least eight months. The pair have been spotted on multiple dates and holidays since they were seen kissing at Allen's celebrity-packed Christmas party at London's Stringfellows in December.
The relationship is Allen's first serious romance since the end of her four-year marriage to Stranger Things star David Harbour, the subject of her acclaimed album West End Girl, which she is currently performing on a new run of tour dates.
Speaking to Perfect Magazine, Allen said she was now in a drama-free stage of life. "There just aren't any dramas or funny anecdotes because I'm not going out and getting wasted any more. All I've done [recently] is been in venues and done this show. And yes, I've got a boyfriend," she said.
Allen did not name her new boyfriend but opened up on how she behaves as a girlfriend. "I'm high maintenance in a relationship. I'm like 'Do you love me?' 'Are you gonna leave me?' 'I'm ugly, aren't I?' I need a lot of validation," she said.
She argued she is low maintenance in most other ways. "I pay for all my own sh*t. I do like to go to expensive restaurants but I never would ever expect anyone else to pay for it," she said. "All of the finer things in life, I provide for myself. So that's not high maintenance. Unless we're talking about my own maintenance of myself. Then yes, 10. But to others, no."
Comments on pornography
Allen also mentioned her boyfriend during a discussion about her "position on pornography." Recalling a recent incident, she said: "There have been times when I've been a porn enthusiast. I'm not currently in one of those periods."
She explained she had tried to go on Pornhub to play a prank backstage, saying, "I thought it would be really funny while everyone was getting ready to go to the toilet and put porn on and everyone would think I was secretly watching it in the toilet."
The prank was scuppered by restrictive wifi, but Allen continued: "Then I was in bed with my boyfriend later and when he asked me to Google something, Pornhub came up on my search history and I tried to explain but it just didn't sound very believable."
