The 'Liz & Dick' actress visited Bootsy Bellows, in West Hollywood, just after midnight, with friends including her assistant Gavin Doyle, ahead of turning 26 on Sunday and onlookers said she was thrilled to be the center of attention when up-and-coming group Speakers performed several songs just for her.
A source told X17Online: "Lindsay was with her pals, with Gavin - it was a private party with only her closest friends. A band performed just for her and she was super happy to be the focus of all that attention all night long."
Lindsay wore a tight pink mini dress to the club where she was presented with cake and cupcakes.
She was also thrilled when the entire club sang 'Happy Birthday' to her and although her friends were drinking, Lindsay - who has had substance abuse issues in the past - didn't touch a drop.
A source told Usmagazine.com: "She sat at her table close to the DJ. Speakers was there and performed several songs for Lindsey. She was loving them and looked happy and carefree as she danced all around with her friends.
"There was a ton of alcohol at Lindsey's table, however she didn't appear to be drinking."
Lindsay took to twitter to thank the group for performing, writing : "Thank you so much @speakersmusic for coming out and killing it on my birthday! These guys are awesome."
In response Speakers posted a picture of Lindsay being serenaded with the words: "We had blast last night. Hope you had great birthday (sic)."