Kyle, Ramona and Vicki Gunvalson were all in attendance for Andy's big day which took place at The Peninsula Beverly Hills.
"Well Kyle, you pulled it off," Ramona said to Kyle before Andy popped in on the Instagram Story and kept saying "Unbelievable" when describing just how chic the festivities were.
It was a Bravo-filled kind of party as Real Housewives of Dallas star LeeAnne Locken showed up for the big celebration.
So did former Flipping Out cast member Jenni Pulos!
Andy must have had Lady Gaga on his mind, as the cake for the celebration had A Star is Born written on the front of it.
East coast meets west coast, as LeeAnne posed with Real Housewives of New York star Dorinda Medley and Real Housewives of New Jersey's Teresa Giudice!
Real Housewives of Beverly Hills' Lisa Rinna came armed with a big gift for Andy.
Lisa's costar Erika Jayne waved hi to the camera during the party.
RHOC in the house! "Amigas" Tamra Judge and Shannon Beador also stopped by.
RHONY star Sonja Morgan looked to be having a blast.
She has arrived! Real Housewives of Atlanta star NeNe Leakes embraced the father-to-be as soon as she walked in.
Andy revealed the big news about his impending fatherhood on Watch What Happens Live right before Christmas. He's been doing his show in Los Angeles over the past couple of weeks in anticipation of his surrogate giving birth.
What are your thoughts on Andy's Housewives-filled baby shower? Sound off in the comments.