Congrats to LeAnn Rimes and Eddie Cibrian, who've gotten married... again. Yes, the PDA-happy couple celebrated their first wedding anniversary by renewing their vows, in case they might have forgotten them over the past 366 days. "It's incredible to thank each other for the past year as husband and wife," LeAnn tweeted from Cabo San Lucas, Mexico, on April 27. "Here's to another great year!" But the Cibrians aren't the only stars who've said "I do" again. See what other couples have re-pledged their love.