Nothing says love like a hefty cup of frozen yogurt.
Manganiello, along with fiancée Audra Marie, spun songs for the crowd for about two hours while guests sampled swirly sweet treats. Who knew he was so skilled on the turntables?
No word on if the couple will serve Pinkberry at their wedding.
In other celebrity sightings news...
David Arquette hosted his new Roosevelt Hotel event Beacher's Madhouse in Hollywood over the weekend, where 90210's Shenae Grimes and Jessica Stroup celebrated their birthdays along with celeb guests like Paris Hilton, AnnaLynne McCord, Brittany Snow and Trevor Donovan.
Leonardo DiCaprio dined on corned beef hash and toast at Du-Par's Restaurant and Bakery at L.A.'s Original Farmers Market.
Tyra Banks grabbed a bite to eat with her father at Napa Valley Grille in L.A.'s Westwood neighborhood, where the two shared salads, beef sliders, veal and a special amuse-bouche sent compliments of the restaurant's executive chef.
Kirsten Dunst hit Hard Rock Hotel and Casino's Vanity nightclub in Las Vegas Saturday for drinks with a friend in a special VIP area.
Also in Sin City, Usher had a low-key lunch with a lady friend at Sushi Roku, while a few blocks away, Jersey Shore's Sammi brunched at Simon at Palms Place with two friends.
Across the country, funnyman Craig Ferguson was a hit at Carnegie Hall, receiving standing ovations at the beginning and end of his sold out NYC show.
Michael Keaton's son, Sean Douglas, plays the Hotel Café on Thursday night. His former band's (Burn Down the Mission) song, "Slow Down," was frequently heard during the just-ended season of Keeping Up With the Kardashians.
—Additional reporting by Melanie Axelgaard, Aly Weisman and Ashley Fultz