MTV's "The Challenge" star Kailah Casillas threw her boyfriend a Las Vegas birthday dinner that included an eclectic guest list of a four-time Mr. Olympia Winner, a DJ and a famous social media personality.
The party was for Casillas' BF Mikey P, who was a two-time finalist on "American Ninja Warrior" and is the current MC for Rehab Beach Club at the Hard Rock. The festivities went down at Andiamo Italian Steakhouse where Mikey was met with Mr. Olympia Jay Cutler, DJ Sev One and social media star Shauniee Stylez.
Cutler, who claimed the title of Mr. Olympia in 2006, 2007, 2009, and 2010, had no problem demolishing the restaurant's signature 32 oz Tomahawk ribeye steak.
After filling up at Andiamo the group hit the town ... and if Kailah partied like she did with "Vanderpump Rules" star Scheana Marie, Mikey had a pretty good birthday.