Romances can sizzle one moment but fizzle the next, and in the world of showbiz, celebrities can face twice as many hardships as the ordinary couple, what with paparazzi shadowing their every move and recording every little argument. As 2011 draws to a close, Female Network looks back at 20 celebrity pairings locally and in Hollywood whose romances went sour this year--from KC Concepcion and Piolo Pascual to Jennifer Lopez and Marc Anthony.

Which pairing's demise made you the saddest? Who was your favorite couple before their relationship went downhill? Share your thoughts in a comment!


For more celebrity couples, check out these galleries:

• Prince William and Kate Middleton Get Engaged + 20 Showbiz Couples You Either Love or Hate
• Power Pairings: 20 Celebrity Couples with Clout
• Age Does Matter: 20 Celebrity May-December Romances
• Phil Younghusband and Angel Locsin Voted Sexiest Showbiz Couple on Female Network