Dolly Parton celebrated some of her biggest hits last night at the Academy of Country Music Awards with a little help from Katy Perry.

The duo outshone everyone else in their brightly-coloured outfits as they teamed up for renditions of 'Coat of Many Colours', 'Jolene' and, of course, '9 to 5'.

It was a dream finally come true for Katy, who recently revealed that she wanted Dolly to join her at her Super Bowl halftime show last year.

Katy donned an electric pink country girl dress for the performance, as well as matching cowgirl boots.

Dolly also didn't disappoint in her sparkling sequinned blazer and white trousers.

The 51st Academy of Country Music Awards were broadcast live from the MGM Grand Garden Arena in Las Vegas last night (April 3) on CBS.

Miranda Lambert, Little Big Town and Chris Stapleton were among the big winners on the night.