We're in London's Leicester Square at the 'Mamma Mia!' premiere with Meryl Streep, Pierce Brosnan, Amanda Seyfried, Colin Firth and even producers Tom Hanks and wife Rita Wilson!
"I'm thrilled to be here," Pierce told ET. "I've been in this square a number of times over the years, but I have to say this is really one of the happiest."
In the Broadway smash-turned-big screen musical, Amanda stars as a blushing bride who invites three men to a Greek island -- all of whom could be her father! Meryl stars as the mother of the bride, while Pierce, Colin and Stellan Skarsgard co-star as possible papas. The movie musical, which hits theaters on July 18, takes its music from hit '70s supergroup ABBA.