Lindsay Lohan has performed a duet with her girlfriend Samantha Ronson and the DJ's producer brother MARK - taking the stage at a family celebration in London.
The actress/singer attended a Jewish Bar Mitzvah ceremony for one of Ronson's relatives at a synagogue in the British capital on Saturday (28Feb09).
The family went on to celebrate the occasion with a party at the Mandarin Oriental hotel, in Londons Knightsbridge.
And Lohan delighted guests by taking to the stage at the event to sing with her lover, performing the Beatles' With A Little Help From My Friends.
The girls were joined by Ronson's older brother, Mark, who accompanied them on guitar.
A source tells British newspaper The Sun, "It was amazing. Everybody loved it. Lindsay and Sam looked really loved up.