You won't be able to skip as many songs as you want but you'll be able to play any song that you want! (You need jailbroken iphone)
1. Open up Cydia.
2. Go to manage>sources>edit>add
4. Install it (im not gonna install it because i already did)
5. Respring your iphone and open spotify
(If you want to skip songs you simply can double press home button and end task and then open spotify again)
Thanks for reading I hope it helped!