updated 04/12/2010 AT 8:00 AM ET
•originally published 04/11/2010 AT 8:00 PM ET
The Hills star, joined by her husband Spencer Pratt, hosted the grand opening of the Liquid pool Saturday, unveiling her bikini body in a public setting for the first time since she had 10 surgeries last November.
“I’m not nervous at all,” she told PEOPLE upon entering the pool at Aria. “I’ve been working out really hard and I’ve been through a lot so I’m very ready for this moment.”
As if on cue, Montag doffed a sarong and unveiling a bedazzled bikini from her swimsuit line as her song “Body Language” was played overhead.