ST. PAUL, Minn. -

John Mayer has dropped out of a tribute concert honoring Prince tomorrow night.

Mayer had a "change of schedule'' and has had to withdraw from the concert at Xcel Energy Center in St. Paul.

Performers still in the lineup include Stevie Wonder, Christina Aguilera, Chaka Khan and Prince's ex–wife Mayte Garcia has just signed up.

Members of the New Power Generation and 3rdEyeGirl will act as the house band.