Sam Smith wears a glitzy phallic earring as they join boyfriend Christian Cowan at annual charity toy drive and Christmas party in New York

Sam Smith wore a glitzy phallic earring at David Barton and Susanne Bartsch's Annual Toy Drive and Holiday Party on Thursday. 

The singer, 31, who uses they/them pronouns, stepped out to support their boyfriend, fashion designer, Christian Cowan, 28, at Gym U, in New York City. 

Sam teamed the statement piece with a smart black double breasted blazer with matching trousers and a shirt. 

They accessorised with a graphic printed Vivienne Westwood tie and sported a styled moustache. 

The event, which was hosted by Christian and Marc Jacobs, amongst others, works to benefit children in need, with all guests donating toys. 

Fashion designer Christian looked as stylish as ever in an oversized blazer and black sweater. 

The couple, who were first linked in January, were joined by event organiser Susanne Bartsch as they posed for a photos. 

Prior to their relationship with Christian, the Stay With Me singer had a high profile romance with 13 Reasons Why actor Brandon Flynn.

Sam has also been romantically linked with British reality television star Charlie King and soap star Andy Newton Lee.

Despite their high profile romances, Sam prefers to keep their love life out of the public eye.

'I've never really kind of played by the rule book. I love people and whoever I fall for, that's who I fall for. I don't know who that's going to be,' Sam told The Sun.

'Now I don't know what gender they will be, to be quite honest, and that's a freeing thing - to not be limited to one category of person. I just fall in love with whoever I fall in love with.'

Sam has also been linked romantically to Francois Rocci, Jonathon Zeizel and Jay Camilleri and has spoken about how their relationships have influenced their music.

Speaking to The Sun, they said: 'A queer person's first relationship is a huge thing sometimes, because it's where you discover the most about yourself.

'And so [the Love Goes album is] more about me and my journey after that, really. But yeah, it is basically a break-up album.

'I generally have never really thought about people, any human beings, in rigid terms. I've grown up in a family where the gender power balance and all these things were completely shifted.'

They explained: 'My mum worked, my dad was a househusband. My sisters are incredibly strong women.'