CELEBRITY WIFE SWAP - "Coolio/Mark McGrath" - The wife and girlfriend of two of the biggest names in '90s music swap lives and homes for one week, on "Celebrity Wife Swap," TUESDAY, MARCH 5 (8:00-9:00 p.m., ET) on the ABC Television Network. (ABC/DAVE BENTLEY) HARTLEY MCGRATH, MARK MCGRATH, LYDON MCGRATH