Big & Rich's John Rich celebrated his 32nd birthday Saturday (Jan. 7), but several of his friends gathered the night before for a private party at Bluesboro, a Nashville nightclub. Among those attending the event were Kix Brooks, Kid Rock, Blake Shelton, Billy Joe Shaver, Tanya Tucker, John Anderson, Holly Williams, Keith Anderson and MuzikMafia members James Otto and Jon Nicholson. With a Rat Pack theme, the music was provided by a swing band, although many of the artists performed, including Brian McKnight, who sang his 1999 pop hit, "Back at One." Decorations for the party included an ice sculpture to resemble some of the other attendees -- nearly a dozen "Rich ladies," complete with bunny costumes, who traveled from Texas for the event.