Las Vegas--Grammy-nominated group the Goo-Goo Dolls took the stage Thursday night on the Wynn Las Vegas’ Sunset Pool Deck for the official opening night party of Couture 2011.The group, which first rose to fame in the mid-1990s, entertained the crowd with chart-topping hits including “Name,” a song from the 1995 album “A Boy Named Goo” that turned into the band’s first big single, as well as “Slide” and “Broadway,” both from the 1998 album “Dizzy Up the Girl.”Party attendees ate, drank and danced pool-side while listening to the Dolls on a breezy Las Vegas night. The group, which formed in Buf