Lindsay Lohan and fiancé Egor Tarabasov made their red carpet debut as a couple at the Caudwell Children's Butterfly Ball in London on Wednesday (22.06.16).

Egor Tarabasov and Lindsay Lohan

Egor Tarabasov and Lindsay Lohan

The 'Mean Girls' actress and Russian heir, 22, looked extremely happy as they posed for pictures at their first public appearance since they got engaged.

Taking to her Instagram to share a picture next to her future husband, Lindsay - who now lives in the British capital - wrote: "#onwednesdayswewearpink #butterflyball2016 @clairelcaudwell and @johncaudwell thank you for including us to support all of the work you do for children bless you (sic)"

And the hunky businessman also shared a photo of the pair at the charity bash and said he felt "proud" to attend the event with the flame-haired beauty.

Alongside the photo, he wrote: "Proud to be at #butterflyball16 with @lindsaylohan supporting @caudwellchildren thank you @johncaudwell (sic)."

And Egor certainly has the approval of Lindsay's father Michael Lohan.

He recently gushed: "I'm so happy that Lindsay has found true happiness. It's written all over both of them."

Meanwhile, Lindsay - who is from New York - previously revealed she could see herself settling down in London.

She said: "I can definitely see myself settling in London permanently. New York is very fast paced and it's not like that over here for me. You grow up and change, and I'm really happy about that, as overall I feel a lot better."

Lindsay turns 30 on July 2 and Egor plans to spoil her with a lavish party on the island of Mykonos, which he has invited her closest friends to.