Kim, Khloe and Kourtney KardashianDebbie VanStory/iPhoto

Kim, Kourtney and the rest of the Kardashian gang came out to help Khloe and husband Lamar Odom celebrate the launch of their latest venture, Unbreakable by Khloe and Lamar. “We’re the first celebrity couple do to a unisex perfume, ” Khloe told reporters, admitting that the creative process did spark some marital discord. “It wasn’t just the fragrance, it was a lot of things building up to it, but it did make us have one of our biggest fights!” In New York City, Kelly Ripa and Mark Consuelos helped honor Bravo TV exec Andy Cohen, while Carrie Underwood and Miranda Lambert hit the MGM Grand for the Academy of Country Music’s Girls’ Night Out in Las Vegas. See more photos from last night’s hottest parties in the gallery.