Hot Vegas

Steve -- dressed as Elvis: The Later Years -- and bride-to-be Andrea Hissom road-tested their nuptials at Cupid's Wedding Chapel in Vegas.

The ceremony wasn't legal -- that will happen in grand fashion this weekend.

Moments ago, in front of the Crazy Girls strip club at The Riviera Hotel and Casino ... Flav sealed the deal to open a mega-store at the Riv called, "Flavor Flav's House Of Flavor."

We're told "House of Flavors" will expand Flav's empire beyond a simple poultry eatery -- and will include a bar, a merchandising area with Flavor Flav memorabilia PLUS a recording studio and a stage!

We're told construction of the mega-Flav endeavor is set to begin on Monday ... with the grand opening currently slated for May 30.

Olivia -- who's rumored to be dating Justin Timberlake -- was hosting a launch party for SKYY Infusions Dragon Fruit at Pure nightclub ... when she reminded everyone, "wrap it up ... because you always dribble before you shoot."

She continued, "Let's have fun ... let's hook up ... and maybe share some STDs ... bye!!"

Sources close to the fetus tell us ... Lamas is already several months into the pregnancy ... and Nik Richie is indeed the father.

In fact, the couple isn't letting the bun in the oven slow down their travel plans -- they're co-hosting a party at Pure in Vegas on Friday.

As TMZ first reported, Lamas and Richie tied the knot in a whirlwind Vegas ceremony after partying together for a few hours in Sin City last year.

Timmons -- who's about to start a four week stint with the 'Dales crew in Vegas -- was out in L.A. yesterday, when he told us, "[The Chippendale regulars] don't even strip ... they're like trained dancers."

He adds, "The days of your grandma sticking dollar bills in a strippers G-string are over."

Flav took the Riviera boardroom by STORM Monday during a meeting with casino bigwigs -- including CEO Andy Choy -- and sources close to the deal tell TMZ, Operation Fried Chicken is basically a go in Sin City ... pending some last minute number crunching and contract kinks.

It'd be a huge move up from his first location in rural Iowa -- according to sources, Flav's Fried Chicken would occupy some PRIME real estate inside the hotel ... once the deal goes through.

37-year-old Jeff Timmons has announced he'll don the legendary bow tie ... and not much else ... for a special 4-week run starting in May.

No word on how much $$$ Timmons is set to make for the deal ... but he'll probably get paid in singles.

The insane party -- thrown by Lorenzo's son-in-law Nik Richie of TheDirty.com -- took place at Pure Nightclub ... and we're told, Lorenzo was surrounded by a bevy of 21-year-old girls ALL NIGHT.

Brit performed three songs during the mini-concert at Rain nightclub in the Palms Casino & Resort -- "Hold It Against Me," "Big Fat Bass" and "Till the World Ends." During "Bass," Brit can be seen climbing up and down various props and sitting down on boxes -- not a lot of choreography going on here.

Draw your own conclusions.

Sources tell TMZ .... Neil's ex was at a Hal Sparks concert at the Las Vegas Hilton when Neil allegedly stormed in and started screaming obscenities at her and her two friends.

We're told security at the hotel called Las Vegas PD.

According to our sources, the woman told police Neil got physical with her and one of her friends. The woman tells TMZ police took a battery report but it appears Neil was not arrested.