Riverdale's Lili Reinhart dresses to impress in smart black suit as she joins Atlanta de Cadenet Taylor at Tiffany event

She recently confirmed her relationship with her Riverdale co-star Cole Sprouse was very much still on track.

And Lili Reinhart looked the picture of happiness when she attended the Tiffany Men's Collection Launch at the Hollywood Athletic Club in Los Angeles last week, where she was joined by the likes of Atlanta de Cadenet Taylor.

The actress, 23, looked elegant in a smart black suit with 80s inspired, oversized shoulder pads and wide-legged trousers.

Power dressing: Lili Reinhart attended the Tiffany Men's Collection Launch at the Hollywood Athletic Club in Los Angeles last week

Power dressing: Lili Reinhart attended the Tiffany Men's Collection Launch at the Hollywood Athletic Club in Los Angeles last week

Lili styled her blonde hair in a bouffant updo and completed her look with glowing make-up.

Also in attendance at the bash was Atlanta de Cadenet Taylor, 27, who put in a very glamorous appearance in a skintight blue dress.

Altanta comes from a very famous family; her father is Duran Duran's bassist John Taylor, her stepfather is the Strokes' Nick Valensi and her mother is photographer Amanda de Cadenet.

Gorgeous: Lili styled her blonde hair in a bouffant updo and completed her look with glowing make-up

Gorgeous: Lili styled her blonde hair in a bouffant updo and completed her look with glowing make-up

Putting in an appearance: The actress was joined by Atlanta de Cadenet Taylor at the jewellery event

Putting in an appearance: The actress was joined by Atlanta de Cadenet Taylor at the jewellery event 

Turning heads: Altanta comes from a very famous family; her father is Duran Duran's bassist John Taylor, her stepfather is the Strokes' Nick Valensi and her mother is photographer Amanda de Cadenet

Turning heads: Altanta comes from a very famous family; her father is Duran Duran's bassist John Taylor, her stepfather is the Strokes' Nick Valensi and her mother is photographer Amanda de Cadenet

Cosying up: Atlanta put on a loved-up display with her boyfriend Dave Macklovitch

Cosying up: Atlanta put on a loved-up display with her boyfriend Dave Macklovitch

Meanwhie, Lili confirmed her romance with Cole was back on in September when she called Cole her 'boyfriend' during an interview with Covetur.

Speaking about Halloween, she said she was planning on doing a matching ensemble with the fellow Riverdale star.

'I think I’m leaning in towards a character for Halloween,' she said.

Looking good: Insatiable's Debby Ryan was in attendance alongside Rowan Blanchard

Looking good: Insatiable's Debby Ryan was in attendance alongside Rowan Blanchard

Hot metal: Rowan was looking lovely in a metallic slip dress
Golden girl: The stunning star was looking better than ever in her scoop neck number

Hot metal: Rowan was looking lovely in a metallic slip dress and matching heels 

'I think I’m going to do it with my boyfriend, Cole. I don’t want to spoil it if it’s not going to happen, but it’s a TV duo.'

Cole and Lili reportedly split for a short time back in July after two years of dating.

'Their friends didn't really expect them to last in the long-run,' a source told People at the time.

'At the end of the day, their personalities are very different and their lifestyles often clashed. Things have felt super heavy in the relationship for a while, and it got to be too much. They're both very professional though and trying to be as amicable and friendly as possible.'

They play love interests Betty Cooper and Jughead Jones on the CW’s take on the Archie comics, Riverdale.

Having a blast: Renell Medrano and ASAP Ferg were also in attendance at the bash

Having a blast: Renell Medrano and ASAP Ferg were also in attendance at the bash 

Suave: Jeff Goldblum rocked a smart suit to attend the Tiffany party

Suave: Jeff Goldblum rocked a smart suit to attend the Tiffany party 

Guest list: Justin Theroux was in attendance at the event, looking dapper

Guest list: Justin Theroux was in attendance at the event, looking dapper 

Riverdale's Lili Reinhart joins Atlanta de Cadenet Taylor at Tiffany event

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

We are no longer accepting comments on this article.