Rockwell is all about our favourite stars of music teaming up to perform some unique collaborations, so each week in the run up to the concert we're going to look back at some of our favourite collaborations of the past.

Last week we delved into the 1970s, but today it's all about putting those neon colours and leg warmers to work as we relive the 80s!

Pet Shop Boys & Dusty Springfield - What Have I Done To Deserve This : Once the biggest female pop star in the world, Dusty's fortunes had long faded when lifelong fans the Pet Shop Boys got in touch about a collaboration. The result was 'What Have I Done To Deserve This', a tale of a dysfunctional relationship, which ended up giving Dusty her biggest ever American hit and a #2 chart position in the UK. Becoming friends, the stars collaborated again with Neil and Chris writing 'In Private' and 'Nothing Has Been Proved' for Dusty's 1990 album 'Reputation'.

Kenny Rogers & Dolly Parton - Islands In The Stream : You couldn't fail to know this one after this year's Comic Relief cover by the cast of Gavin & Stacey, but it originally reached #7 in 1983. Written by the Bee Gees, it was originally given to Marvin Gaye and then Diana Ross. Too slow on the uptake, Kenny & Dolly swept in to add their country styles and turn it into a duet. It remains one of the best selling country songs of all time.

David Bowie & Queen - Under Pressure :  When it starts, you might think you're listening to 'Ice Ice Baby' but this #1 from 1981 was the first time David Bowie collaborated with another artist. Written mainly by Freddie Mercury, it's an effortless dancefloor classic that can turn up the heat in the smallest club or the biggest stadium. As these things so often work out, the two chart toppers hadn't planned to work together but just bumped into each other at a tiny studio in Switzerland.

Elaine Paige & Barbara Dickson - I Know Him So Well : How could we leave out one of musical theatre's all-time favourite songs? Composed by Benny Andersson and Bjorn Ulvaeus for the post-Abba musical 'Chess', it's a story of two women called Svetlana and Florence fighting it out over a man. It's the perfect karaoke song for two girls, but as John Barrowman recently proved, men can do it too! He's recently covered it with Avenue Q star Daniel Boys and it's well worth a listen. The original stayed at #1 in 1984 for four weeks and remains the biggest selling female duet in chart history.

Next up - the 90s. How will we choose between all those Kylie duets?