American Idol's 14-year run came to an end last night, when the final show of the series aired in the US.

Needless to say, it was a star-studded finale that cast an eye over the show's history, as well as crowning this year's winner.

One of the special guests was Kelly Clarkson, who won the first-ever American Idol back in 2002 before going on to become an internationally successful pop star.

As she's about to have her second child, she performed a pre-recorded medley of her greatest hits, which you can see below:

 

As promised, J. Lo also performed her new song 'Ain't Your Mama' in full: