The Minogues do Memphis! Kylie and Dannii enjoy a night at the theatre as they take in production of award winning musical

The cast of a new West End production were given a rare treat on Saturday evening when Kylie and Dannii Minogue made a welcome backstage appearance.

Arriving at London's Shaftesbury Theatre, the Australian sister act were in the audience for a performance of David Bryan and Joe DiPietro's Tony Award winning musical Memphis.

Slipping backstage as the curtain dropped, Kylie and Dannii were on had to congratulate cast-members Beverley Knight and Matt Cardle, who joined the production in May.

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Double act: The cast of a new West End production were given a rare treat on Saturday evening when Kylie and Dannii Minogue made a welcome backstage appearance

Double act: The cast of a new West End production were given a rare treat on Saturday evening when Kylie and Dannii Minogue made a welcome backstage appearance

Look ladylike in lace like Kylie in Keepsake

We certainly hope the cast of the new West End Production was in top form on Saturday evening as they had two very special guests in the audience. Sisters Kylie and Danni Minogue headed to the show looking as glamorous as ever.

Danni arrived wearing a black, wrap, tuxedo style dress, while Kylie wore a more summery cream hue in the form of this stunning Keepsake dress. The pick featured lace details and a halter neck and Kylie absolutely stunned in the number. The good news too is that Keepsake won't leave you penniless as this beautiful piece is just $260- - a bargain for the quality finish.

If you're hoping to steal Kylie's style, click right to bag yourself her little lace number now from ShopBop. If you'd prefer the dress in a maxi length for a more dressy occasion, head below to Urban Outfitters to invest.

Otherwise check out our picks by Missguided and Stylestalker to get the look for less.

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Clearly delighted, pop princess Kylie, 47, later shared a snap of the pair alongside former X Factor UK winner Matt following his latest performance as Memphis lead Huey Calhoun. 

Captioning the shot, she wrote: 'Thanks for a great show @mattcardleoffocial, #BeverleyKnight, cast and crew of @memohismusical. @danniiminogue and I loved it!' 

The singer looked typically elegant on the night, opting for a sleeveless lace dress with striking floral embellishments. 

Picture perfect: Slipping backstage as the curtain dropped, Kylie and Dannii were on had to congratulate cast-members Beverley Knight and Matt Cardle, who joined the production in May

Picture perfect: Slipping backstage as the curtain dropped, Kylie and Dannii were on had to congratulate cast-members Beverley Knight and Matt Cardle, who joined the production in May

The Minogues do Memphis! Kyle and Dannii were in the audience  at London's Shaftesbury Theatre for a performance of David Bryan's Tony Award winning musical Memphis, which stars Beverley as Felicia Farrell and Matt as Huey Calhoun
The Minogues do Memphis! Kyle and Dannii were in the audience  at London's Shaftesbury Theatre for a performance of David Bryan's Tony Award winning musical Memphis, which stars Beverley as Felicia Farrell and Matt as Huey Calhoun

The Minogues do Memphis! Kyle and Dannii were in the audience  at London's Shaftesbury Theatre for a performance of David Bryan's Tony Award winning musical Memphis, which stars Beverley as Felicia Farrell and Matt as Huey Calhoun 

Delighted: Clearly delighted, pop princess Kylie, 47, later shared a snap of the pair alongside former X Factor UK winner Matt following his latest performance as Memphis lead Huey 

Delighted: Clearly delighted, pop princess Kylie, 47, later shared a snap of the pair alongside former X Factor UK winner Matt following his latest performance as Memphis lead Huey 

Kylie added to her look with a pair of strappy heels, while her tousled locks were pulled back - revealing a face upon which her make-up had been applied from a natural colour palette.

Meanwhile Dannii, 43, looked equally elegant in a plunging black evening dress  as she joined her sister for a series of backstage photos. 

Matching black strappy heels completed the ensemble, while a bold statement necklace provided an adequate focal point. 

Say cheese: Kylie and Dannii took centre stage for a series of photos with the entire cast in London on Saturday evening

Say cheese: Kylie and Dannii took centre stage for a series of photos with the entire cast in London on Saturday evening

Loosely based around real life events, the award winning musical focuses on the plight of 50's DJ Calhoun and Felicia Farrell, played by Knight - a club singer who is desperate for her big break.

Amongst its numerous accolades the production won four Tony's during its three year run on New York City's Broadway.

The musical received its West End debut in London last October. 

Inspired: Loosely based around real life events, the award winning musical focuses on the plight of 50's DJ Calhoun and Felicia Farrell, played by Knight - a club singer who is desperate for her big break

Inspired: Loosely based around real life events, the award winning musical focuses on the plight of 50's DJ Calhoun and Felicia Farrell, played by Knight - a club singer who is desperate for her big break