Grammy winning singer/songwriter Alicia Keys has lent her vocals to Tiffany & Co's new Believe In Love campaign, which 'honours commitment in its many forms and features a diversity of real couples'.

The campaign video, featuring a series of hands 'in intimate, personal gestures that capture the emotional connection of each couple', is soundtracked by an a capella rendition of Keys's single No One, and she commented 'Love and commitment is as unique and individual as we are, and every relationship deserves to be recognised and celebrated. We need more love than ever right now, and I'm proud to lend my voice to something beautiful that is so true to the spirit of my music'.