LOS ANGELES, CALIFORNIA: Hailey Bieber is facing a lot of criticism online for wearing a white dress at her friend's wedding over the weekend. The gorgeous Rhode Skin founder, 25, donned a slinky backless dress and seemingly went braless on the occasion as she attended her friend Stephanie Shepherd's wedding ceremony.

Currently married to Justin Bieber, Hailey had posed for a series of snaps in which she showcased her outfit prior to the event. Hailey posed against a plain background, showing off her toned physique and gazed into the distance as she flaunted the silky light-coloured, form-fitting dress. Hailey also had her blonde locks styled simply with a side parting as her hair ended in a sharp blunt cut, grazing her jawline. She rocked a shimmery pale blue eyeshadow and bronzed makeup look.

'Why is she wearing white to a wedding?'

However, Hailey's outfit for the event rubbed her Instagram followers in the wrong way, especially due to the color of her dress. It subsequently sparked off a heated discussion in the comments section. "Wait but she wore this to a wedding... white... to another person's wedding... I mean..." one fan wrote. A second then asked, "Why is she wearing white to a wedding?????" "To a wedding?" questioned a third. A fourth fan wrote, "Wearing all white to someone else's wedding? Classic mean girl."

'So pretty! You looked gorgeous'

Others, however, debated that the color of the dress was actually a very pale shade of blue, as one commented, "This look is everything. I love the baby blue." Meanwhile, many fans thirsted at her alluring appearance as one penned down, "We are looking at one of the sexiest women alive. And with a breathtaking smile." "So pretty! You looked gorgeous [last] night babe," added a second, while a third simply penned, "Unreal."

A well-known etiquette rule is that a wedding guest should avoid wearing white or any other light-colored clothes while attending marriage events, unless there is an all-white theme. Brides magazine state that guests should "steer clear of off-white, eggshell, beige, champagne, cream, or any other super light color that could be mistaken for white". The debate related to Hailey's dress kicked off after she was seen wearing it for her friend Stephanie Shepherd and Larry Jackson’s ceremony in Beverly Hills.

Stephanie is an actor, entrepreneur, environmental advocate, and television personality who used to work with Kim Kardashian. Besides Hailey, the Skims founder herself was also present in the event along with her mother Kris Jenner. Kris was spotted arriving along with her partner Corey Gamble. Hailey Bieber was seen chatting with Malika and Khadijah Haqq, who are both close friends of the Kardashian-Jenner family.