Spectacular Céline Dion and Whitney Houston duet of 'Greatest Love Of All' recorded 25 years apart

One very clever internet user has merged footage of Whitney Houston singing 'Greatest Love Of All' in a duet with Céline Dion singing the song 25 years later - and it is truly spectacular!

One day after the 'I Will Always Love You' singer's death on February 11, 2012, Dion took the stage at the Grammy Awards to pay tribute to Houston with a powerful rendition of the 1986 hit.

The footage for the duet shows the 54-year-old's Grammy tribute interspersed with shots of the song's official music video and Houston's own stunning performance of 'Greatest Love Of All' at the 1986 Grammy Awards.

Originally written by Michael Masser and released by George Benson in 1977, 'Greatest Love Of All' was recorded by Houston for her self-titled album.

Her cover became her third-biggest hit after 'I Will Always Love You' and 'I Wanna Dance with Somebody (Who Loves Me)'.

All three songs re-entered the Billboard chart after she died in February 2012.