More than 500 artists also will participate in the two-week festival that begins on Tuesday.

But the main draw is the dancing, in the traditional "salon tango" category and the more creative "stage tango" competition.

Each winning couple gets a prize of 20,000 pesos about $4800.

For many, tango brings to mind strong visual elements: eyes locking across dance floors, swishing skirts, masculine framing and dramatic lines. But for the headliners at this year's Victoria Tango Festival, it's all aural.

The details were announced last night by cultural officials in the Argentine capital. Last year's event drew 350,000 people.