afranklin061310_01_X17new230WM.jpg Here comes the bride!

Aretha Franklin is planning to walk down the aisle with her longtime friend William "Willie" Wilkerson.

The 69-year-old Grammy-winning singer, who turns 70 in March, got engaged over the holidays.

In a statement, Franklin says she would like a summer wedding ... possibly in Miami Beach and followed by a reception on a private yacht.

For her wedding gown, the R&B diva says she'll be considering Valentino, Vera Wang and Donna Karan.

This will be the third marriage for the "Respect" singer.