Socialite Paris Hilton has flown to the U.K. to watch legendary rockers Led Zeppelin take to the stage for their reunion concert. The 26-year-old will join her boyfriend, Greek shipping heir Stavros Niarchos, at London's O2 Arena on Monday (10Dec07) night when the band reform to pay tribute to their late friend and Atlantic Records founder, Ahmet Ertegun. According to celebrity blogger Perez Hilton, the couple have planned a romantic break in the British capital after attending the show.