The troubled 26-year-old actress and her City of the Sun beau were spotted kissing while out in L.A. together Saturday night.
The couple were snapped smooching at Snow's band's weekend show at the 41 Ocean club in Santa Monica.
"[Lohan] arrived late just before the band went on," an onlooker tells E!. "She was kissing Avi passionately in the corner of the club—then the band went onstage."
"Lindsay was loving the performance, bouncing her feet and dancing in her seat," the source adds. "At the end, as they came offstage, she grabbed Avi and planted a kiss in front of the whole crowd."
Earlier today, LiLo took to Facebook to shoot down reports that she was drinking during the bash. "1) It wasn't a nightclub - 41 Ocean is a members only dining club...and a private event," she posted. "2) It WAS Pellegrino! and 3) the most important part - the band City of the Sun did any amazing job last night! I took this video for you guys to see."