12/17/2013 AT 01:15 PM EST
Friday night was a lively one for Enrique Iglesias
, who excited fans at an Atlantico rum-hosted Gilt City New York event at Tenjune.
"He arrived with an entourage and brought rum for everyone to drink," an onlooker tells PEOPLE. "He posed for photos with fans and answered fan questions. He seemed like he was in a really good mood."
Although the night was upbeat, things turned sentimental when the singer's topic turned to the late Whitney Houston
, who he said "inspired" him and he "always admired."
Iglesias, who told the group that he used to sing along to Houston's songs when he was a little boy, had an additional woman on his mind that night, too.
When a fan asked him about his celebrity crush, instead of mentioning longtime gal pal
Anna Kournikova, he said Diane Lane. – Dahvi Shira