Rochelle Wiseman, Frankie Sandford, Mollie King, Una Healy and Vanessa White are asking their followers to tell them their favourite song for summertime.
Once the imaginary playlist is in, the girls will be recording a special cover of their favourite suggestion!
The Saturdays have teamed up with First Choice for the campaign and, to celebrate, have compiled their own perfect poolside playlist.
Rochelle has picked 'American Boy' by Estelle ft. Kanye West, while Frankie's favourite summer track is 'Anything Could Happen' by Ellie Goulding.
Mollie has meanwhile opted for 'Timber' by Pitbull ft. Kesha, Una likes 'Lola's Theme' by Shape Shifters and Vanessa has decided that 'Look Right Through You' by MK is her best summer tune.
The girls have also popped on their summer clothes and posed together on brightly coloured deck chairs to encourage people to take part. It's a shame it's grey and raining in reality!
First Choice will be putting together a playlist from fans' suggestions to play by the pool on their all-inclusive Holiday Village breaks and, by helping create the list, you stand the chance of winning a holiday to Ibiza.
For more information and to add your fave summer tune to the list, click here!
Watch The Saturdays' video for 'Not Giving 'Up here: