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The secret's out -- multiple Grammy-winner Norah Jones will perform tonight at Off Broadway to help kick off the first of four nights of the Open Highway Music Festival.

Jones' appearance is confirmed but you won't find it mentioned on Off Broadway's web site or in any festival literature.

Jones is joining her tour mate Cory Chisel, who is among the headliners Wednesday night. The various acts at the festival will perform in different configurations with each other.

Here's the rundown of the Open Highway Music Festival:

-- 8:30 p.m. Wednesday

The Wild Rovers tour featuring Cory Chisel, the Candles, Adriel Denae, Space Woman and special guests, $15-$18

-- 7:30 p.m. Thursday

Lucero, Kentucky Knife Fight, Jesse Irwin, $20-$23

-- 7:30 p.m. Friday

Those Darlins, JC Brooks and the Uptown Sound, Via Dove, $15-$18

-- 7:30 p.m. Saturday

Murder By Death, Otis Gibbs, Rats and People Motion Picture Orchestra, $15-$18

A limited number of four-day $40 passes are available at ticketweb.com.

Get more information at offbroadway.com.

Kevin C. Johnson is the pop music critic for the St. Louis Post-Dispatch.