Britney arrives in Brazil...

BRITNEY SPEARS is reported to have hired a lookalike as part of her security measures when she arrived for ROCK IN RIO yesterday (January 17).

The pop princess, who was also attended by three burly security guards while she sunbathed by her hotel pool according to The Star, appears tonight alongside *N Sync and Aaron Carter.

Other bands who arrived yesterday included Queens Of The Stone Age and Iron Maiden. Click back later today for further updates from Brazil.