Princess Charlene 'surprises' tourists with unexpected arrival at Monaco Palace

Princess Charlene caught her admirers by surprise

after unexpectedly appearing in one of the tourist sessions.

The 44-year-old during her visit to the principality's

royal residence stopped to greet the visitors.

Charlene also engaged in hugs and posed for pictures

before seeing newly displayed treasures around the palace.

The mother-of-two was previously spotted at

the opening ceremony of the 61st Monte Carlo TV

Festival last month along with husband Prince Albert of Monaco.