Stored Procedure doesn't work

Hello all,

Why this stored Procedure doesn't work?

USE BookShop;
GO
CREATE Procedure BookShop.NewCustomers

@FirstName VarChar(25),
@LastName VarChar(30),
@Phone VarChar(24),
@Address1 VarChar(25),
@Address2 VarChar(30),
@city VarChar(25),
@state VarChar(10),
@zip VarChar(12)

AS

SET NOCOUNT ON;

INSERT INTO

BookShop.Customers

Values (FirstName, LastName, Phone, Address1, Address2, city, state, zip)
WHERE FirstName = @FirstName AND LastName = @LastName AND Phone =@phone AND Address1 = @Address1 AND Address2 = @Address2 AND City = @City AND State = @State AND Zip = @zip;
Go
ERRoR:
Msg 156, Level 15, State 1, Procedure NewCustomers, Line 21
Incorrect syntax near the keyword 'WHERE'.
Regards,
GGGGGNNNNN