11/14/2016 6:33 AM PST BY TMZ STAFF
The couple that does Vegas together …
The Phelps’ got behind the DJ booth at XS Nightclub at the Encore … and helped the famous DJ celebrate his 38th birthday while the club went crazy.
Interesting note … neither Michael nor Nicole were pictured with an alcoholic beverage in their hands. As you probably know, Phelps has battled issues with booze over the years but has said he hasn’t sworn it off completely.