Celebrity relationships are always in the public eye - and this can take its toll, with break-ups hitting the headlines almost daily. But that is not to say that all celebrity couples are doomed, and many famous pairs have kept their relationships alive and healthy for many years. With the pressure of demanding careers and the scrutiny of the media, it takes a strong relationship to withstand all this and the usual tests of a long-term relationship.
Some of our favourite A-list pairings - from power couples like Victoria and David Beckham and Beyoncé and Jay-Z to steady marriages like Sarah Jessica Parker and Matthew Broderick's - provide an inspriation to many of us in our own relationships as we look up to their long lasting love and starry success.
And thankfully, most celebrity couples aren't coy about why their partnerships are so successful, working hard at their relationships over the years, and have shared thoughts and advice on their relationships in interviews. Here are our favourite quotes, from David Bowie gushing about Iman to Helen Mirren explaining why she never sends Valentine's Day cards.