A spokesperson for the Mean Girls star issued a statement denying multiple reports which suggested Lindsay had accepted her Russian boyfriend Egor Tarabasov's proposal over the weekend (09-10Apr16).

Hunter Frederick told People.com on Tuesday "the story is untrue and holds no merit," but the actress continued to keep fans guessing when she wore an emerald and diamond ring on her engagement finger during a Duran Duran concert at the Barclays Center in Brooklyn, New York on Tuesday night (12Apr16).

The actress was joined by Egor, her parents Dina and Michael and sister Ali, who cheered from the audience as Lindsay took to the stage to sing Danceophobia with frontman Simon Le Bon and dance around in a revealing jumpsuit with sequins and tassle details.

Lindsay features on the song on their album and previously performed it live with the band at London's 02 Arena in December (15).

She made no mention of the engagement rumours online, and simply wrote, "Thank you New York! #duranduran #nyc @duranduran" on Instagram after the show with a picture of her appearance.

Lindsay, 29, started dating Egor, 22, last year (15) and she revealed in March (16) that they had already moved in together by sharing a photo of Egor sorting hangers and writing, "Moving in and How to get your man to help #HTGYMTH. 1. Organizing hangers: a happy closet is a happy mind (sic)."

She previously opened up about her relationship with Britain's The Sun newspaper, revealing, "I haven't known Egor for that long... We've been together for about seven months. He is a great guy. I met him in the summer. I'm really happy."