Lindsay Lohan's ex-boyfriend Wilmer Valderrama, who starred as 'Fez' on That 70's Show, tried to win her back by serenading her in a nightclub.
Valderrama - who dated the Mean Girls actress in 2004 when he was 24 and she was 18 - arrived at Unik's weekly karaokeparty on Sunday night and dedicated a song to Lindsay.
A source told the New York Daily News newspaper: "He tried to talk to her, but she didn't have much time for him. Then he grabbed a microphone and said, 'Lindsay, this is for you.' "
Wilmer sang Matchbox 20's hit Back 2 Good, belting out: "Just stand there, I could say so much. But I don't go there because I don't want to. I was thinking if you were lonely maybe we could leave here and no one would know. I'm lonely now and I don't know how to get it back to good."
Lindsay reportedly shouted after the performance: "It's too late!"
The source added: "Wilmer tried to take it like a man. But he left a few minutes later."
Earlier in the evening Lindsay - who recently finished a stint in rehab for alcoholism - sang Dirrty by Christina Aguilera, Criminal by Fiona Apple and Like I Love You by Justin Timberlake.
On Saturday night, Lindsay and her friends, DJ Samantha Ronson and PR guru Lisette Sand-Freeman, visited the Beatrice Inn, before going to The Box at 1am.
Lindsay got up on the stage and sang while doing a "stripper dance" to raucous applause, reports the New York Post newspaper.