Country star Toby Keith will be replacing Brad Paisley at the third annual Music City Jam in February (07), after Paisley learned his pregnant wife is due to give birth the same week. Paisley was due to headline the 28 February event, part of the Country Radio Seminar, at the Nashville Convention Center in Tennessee. But he has since found out his actress spouse KIMBERLY WILLIAMS-PAISLEY is expecting - so Keith has stepped in.