Jessica Simpson let her hair down and got her drink on with her fiancé Eric Johnson and friends at Cabo Cantina Tuesday.
The 30-year-old spent the night sipping on margaritas and having a blast catching up with pals and RadarOnline.com has the exclusive video.
Simpson appeared to be in high spirits, even smiling and waving to the camera once she noticed she'd been spotted!
Jessica and Eric were hanging out with her former assistant Cacee Cobb and longtime boyfriend, actor Donald Faison along with a number of other friends.
However, it wasn't smiles and laughs all night, according to an eyewitness there was a little tension between the newly engaged couple.
"There was definitely some sort of tension between Jessica and Eric," Chris Rodriguez tells RadarOnline.com. "She looked upset, and had a weird look on her face at which point Eric got up and walked away."
Watch the video on RadarOnline.com
As RadarOnline.com previously reported, Jessica and Eric, a former pro football player who Jessica says is now working as a "life coach" became engaged in November, just one week after her ex-husband Nick Lachey announced his engagement to Vanessa Minnillo.
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