Samantha Ronson has announced her engagement to Lindsay Lohan.

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The DJ has said the couple are planning to marry by the end of the year after making the commitment.

Samantha, 31, let slip her happy news while DJing at exclusive Hollywood hotel Chateau Marmont. She said: “By the end of this year, my love will be Mrs Ronson! Tonight shows the power of a woman – to underestimate that is to underestimate the world.”

Lindsay, 22, has made no secret of her love for Samantha – the sister of music producer Mark Ronson – in recent weeks, and dedicated Ray LaMontagne’s touching ballad Trouble to her on her blog.

Ray’s romantic track includes lyrics such as: “She gave me love and affection/I said I love her/She’s good to me” and “I’ve been saved by a woman/She won’t let me go/She won’t let me go now.”

Lindsay and Samantha first sparked rumours they were dating in March this year, and in May the Mean Girls actress referred to the DJ as “my husband”
at the Cannes Film Festival.

While in Cannes, Lindsay also joked the couple wanted to have a partnership ceremony at Dolly Parton’s Dollywood theme park.