"Still The One" blasted on speakers as Twain stepped onto a temporary outdoor stage near fountains made famous by events including daredevil Evel Knievel's motorcycle crash during a stunt on New Year's Eve 1967.
To some, Twain's arrival echoed singer Frank Sinatra's heralded arrival on a camel at the old Dunes hotel in September 1955.
Twain's show titled "Shania: Still the One" opens Dec. 1 at the nearly 4,300-seat Colosseum at Caesars Palace. The venue also hosts entertainers Celine Dion, Elton John, Jerry Seinfeld and others.
Twain, 47, is touted as one of the best-selling female country artists of all time. The Canadian singer-songwriter has sold more than 75 million albums worldwide.
Las Vegas police, including several on horseback, diverted traffic on the busy casino corridor for about 30 minutes for the spectacle.
