Mariah Carey planning `world tour`

Washington: Mariah Carey is reportedly planning to go on tour.

According to a source, after the huge success of `Beautiful`- that has topped the charts in 25 countries and features in the top five in 45- fans are clamoring as Carey makes plans for a world tour, Us magazine reported. The tour would be the first global trek for the `I Know What You Want` singer since 2004, when she was on her ` Charmbracelet ` world tour. During her Angels Advocate tour in 2010, Carey performed in the U.S., Egypt, Brazil and Singapore. ANI