As Abba reunite, FEMAIL reveals the A-listers who put bitter break-ups behind them - Daily Mail

As Abba's Agnetha Fältskog and Björn Ulvaeus reunite for their new London concert, FEMAIL reveals the A-listers who put bitter break-ups behind them to continue working together.

When you've been through a break-up, the last thing you want is to be confronted by your ex at every turn, but when it comes to celebrity pairings, avoiding each other isn't always that easy, especia… [+21447 chars]

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