Whitney Houston's recording of I Will Always Love You wasn't just a hit, but an unstoppable cultural phenomenon. Released in November 1992 as the lead single from The Bodyguard: Original Soundtrack Album, it topped the Billboard Hot 100 for 14 consecutive weeks – then a record – and won two Grammy awards. Thirty years after it came out, it remains the best-selling single of all time by a female artist.

Source: BBC