Julianne Hough and Ryan Seacrest
Jason Merritt/Getty, Jordan Strauss/Getty
Also in Miami for Rock of Ages: Katy Perry, who took Russell Brand to Casa Tua on South Beach for a special 36th birthday celebration. The couple headed upstairs to a VIP section with their friends. "They were super cool and had a blast," a source tells us.
Mom-to-be Tori Spelling and hubby Dean McDermott sang and danced with each other at the Simon G Jewelry bash at the Palazzo in Las Vegas. The couple brought kids Stella and Liam to town for the weekend. They made time for poolside fun, and also had a family dinner at Carnevino, where they ate a special menu prepared just for them that included grilled octopus, beef cheek ravioli and – for dessert – cherry Coke floats with vanilla gelato.
Mark Wahlberg and Rhea Durham had a playdate at Giggles N Hugs in L.A. with one of their sons. According to an onlooker, the actor was definitely a hands-on dad, accompanying his boy to play on pirate ship and castle while Rhea enjoyed her lunch.
By LINDA MARX and JESSICA WEDEMEYER




