I wasn't going to mention our latest celeb breakup (see below) because these two never quite made it to the altar. Then again, I could be very cynical and say that such status ensures they'll have the cheapest and "easiest" break-up of any celeb on the list so far--!

Lance Armstrong & Sheryl Crow Split

Arguably, this relationship began while Lance was still married. Even when the husband does divorce his wife and it leaves him free to marry the mistress, he either doesn't marry her and they later split up, or he does marry her and they divorce mere months later. These relationships almost never, ever work out. Trust me...

(Thanks to allaboutgeorge for his input in this entry!)

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